Slideshow: Humerus
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Transcript of Slideshow: Humerus
![Page 1: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/1.jpg)
The Humerus
![Page 2: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/2.jpg)
The humerus is the
longest and
strongest bone
in the upper limb
The Humerus
![Page 3: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/3.jpg)
It is the only bone in the arm
It is a long bone
The Humerus
![Page 4: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/4.jpg)
It may be divided into
thirds along its
length
The Humerus
![Page 5: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/5.jpg)
It may be divided into
thirds along its
length
The Humerus
![Page 6: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/6.jpg)
It may be divided into
thirds along its
length
Proximal third
The Humerus
![Page 7: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/7.jpg)
It may be divided into
thirds along its
length
Proximal third
Middle third
The Humerus
![Page 8: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/8.jpg)
It may be divided into
thirds along its
length
Proximal third
Middle third
Distal Third
The Humerus
![Page 9: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/9.jpg)
The Humerus
articulates proximally
at the Shoulder joint
The Humerus
![Page 10: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/10.jpg)
The Humerus
articulates distally
at the Elbow Joint
The Humerus
![Page 11: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/11.jpg)
The Humerus is
expanded at either end
The Humerus
![Page 12: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/12.jpg)
The Humerus is
expanded at either end
There are a number of
interesting projections
The Humerus
Right side
![Page 13: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/13.jpg)
The Proximal Humerus
Posterior ViewAnterior View
The Humerus
Right side
![Page 14: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/14.jpg)
The Proximal Humerus
Posterior
Anterior
Superior or Bird’s Eye View
The Humerus
Right side
![Page 15: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/15.jpg)
Head of Humerus
Posterior ViewAnterior View
The Humerus
Right side
![Page 16: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/16.jpg)
Lesser Tuberosity
Anterior View Superior View
The Humerus
Right side
![Page 17: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/17.jpg)
The Subscapularis muscle attaches to the Lesser Tuberosity of the Humerus
It arises from the whole of the ventral surface of the scapula
It adducts and internally rotates the arm
SubscapularisThe Humerus
![Page 18: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/18.jpg)
Bicipital Groove
Anterior View Superior View
The Humerus
Right side
![Page 19: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/19.jpg)
Bicipital Groove
The Long Head of Biceps Tendon originates from the superior rim of the glenoid of the scapula
It passes through the shoulder joint and enters the bicipital groove
The Humerus
![Page 20: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/20.jpg)
Bicipital Groove
The Biceps muscles attaches distally to the radius
It flexes the elbow joint and supinates the forearm
The Humerus
![Page 21: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/21.jpg)
Greater Tuberosity
Anterior View Posterior View
The Humerus
![Page 22: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/22.jpg)
Greater Tuberosity
Superior or Bird’s Eye View
The Humerus
Anterior
Posterior
![Page 23: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/23.jpg)
Anterior
Posterior
Superior or Bird’s Eye View
The Humerus
3 muscles attach to the Greater Tuberosity
![Page 24: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/24.jpg)
The Humerus
3 muscles attach to the Greater Tuberosity
Supraspinatus
Infraspinatus
Teres Minor
![Page 25: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/25.jpg)
Suprapinatus attaches to the upper part of the
Greater Tuberosity of the Humerus
Anterior
Posterior
Superior or Bird’s Eye View
The Humerus
![Page 26: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/26.jpg)
It arises from the
Supraspinous Fossaof scapula
Suprapinatus attaches to the upper part of the
Greater Tuberosity of the Humerus
It abducts the arm
The Humerus
![Page 27: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/27.jpg)
Posterior View
The Humerus
Infraspinatus attaches to the posterior part of the
Greater Tuberosity of the Humerus
![Page 28: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/28.jpg)
It arises from the
Infraspinous Fossaof scapula
It externally rotates
the arm
Infraspinatus attaches to the posterior part of the
Greater Tuberosity of the Humerus
The Humerus
![Page 29: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/29.jpg)
Posterior View
The Humerus
Teres Minor attaches to the postero-inferior part of
the Greater Tuberosity of the Humerus
![Page 30: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/30.jpg)
The Humerus
Teres Minor attaches to the postero-inferior part of
the Greater Tuberosity of the Humerus
Posterior View
It arises from the
upper part of lateral
border of the scapula
It externally
rotates the arm
![Page 31: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/31.jpg)
Anterior View
3 muscles attach to the bicipital groove and its margins
![Page 32: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/32.jpg)
Anterior View
Pectoralis Major attaches to the lateral lip of the bicipital groove
![Page 33: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/33.jpg)
Anterior View
Pectoralis Major attaches to the lateral lip of the bicipital groove
![Page 34: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/34.jpg)
Anterior View
Latissimus Dorsi attaches to the floor of the bicipital groove
![Page 35: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/35.jpg)
Anterior View
Latissimus Dorsi attaches to the floor of the bicipital groove
![Page 36: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/36.jpg)
Anterior View
Teres Major attaches to the medial lip of the bicipital groove
![Page 37: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/37.jpg)
Anterior View
Teres Major attaches to the medial lip of the bicipital groove
![Page 38: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/38.jpg)
Anterior View
Pnemonic for muscles attaching to the
bicipital groove
A Lady between two Majors
![Page 39: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/39.jpg)
Anterior View
Lady between two Majors
Latissimus Dorsi
![Page 40: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/40.jpg)
Anterior View
Lady between two Majors
Latissimus Dorsi between
Pectoralis Major
![Page 41: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/41.jpg)
Anterior View
Lady between two Majors
Latissimus Dorsi between
Pectoralis Major
Teres Major
![Page 42: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/42.jpg)
Deltoid attaches to the lateral aspect of the shaft of the humerus
![Page 43: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/43.jpg)
Deltoid attaches to the lateral aspect of the shaft of the humerus
![Page 44: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/44.jpg)
Coracobrachialis attaches to the medial aspect of the shaft of the humerus
![Page 45: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/45.jpg)
Coracobrachialis attaches to the medial aspect of the shaft of the humerus
![Page 46: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/46.jpg)
Brachialis attaches to the anterior aspect of the distal half of the humerus
![Page 47: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/47.jpg)
Brachialis attaches to the anterior aspect of the distal half of the humerus
![Page 48: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/48.jpg)
Triceps Lateral Head
![Page 49: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/49.jpg)
Triceps Lateral Head
Triceps Medial Head
arise from posterior shaft
![Page 50: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/50.jpg)
Triceps Lateral Head
Triceps Medial Head
arise from posterior shaft
![Page 51: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/51.jpg)
The Humerus
The Distal Humerus
Anterior View Posterior View
![Page 52: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/52.jpg)
The Humerus
Medial Epicondyle
Anterior View Posterior View
![Page 53: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/53.jpg)
The Humerus
Medial Epicondyle
Medial View
![Page 54: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/54.jpg)
Medial Epicondyle gives attachment to the common
flexor origin
The following muscles attach here
Anterior View
![Page 55: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/55.jpg)
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor digitorum superficialis
Flexor carpi ulnarisAnterior View
Medial Epicondyle gives attachment to the common
flexor origin
![Page 56: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/56.jpg)
The Humerus
Trochlea
Anterior View Posterior View
![Page 57: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/57.jpg)
The Humerus
Trochlea
Medial View Inferior View
![Page 58: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/58.jpg)
The Humerus
Trochlea
The Trochlea articulates with the proximal Ulna at the elbow joint
![Page 59: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/59.jpg)
The Humerus
Coronoid Fossa
Anterior View
The coronoid fossa articulates with the coronoid process of the ulna
![Page 60: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/60.jpg)
Posterior view
Olecranon fossa
The olecranon process of the ulna articulates
with the olecranaon fossa
![Page 61: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/61.jpg)
The Humerus
Capitulum
Anterior View Posterior View
![Page 62: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/62.jpg)
The Humerus
Capitulum
The Capitulum articulates with the head of the Radius at the elbow joint
![Page 63: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/63.jpg)
The Humerus
Radial Fossa
Anterior View
The radial head articulates with the radial fossa in flexion of the elbow
![Page 64: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/64.jpg)
posterior view
![Page 65: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/65.jpg)
Medial epicondyle
posterior view
![Page 66: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/66.jpg)
Lateral supracondylar ridge
posterior view
![Page 67: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/67.jpg)
posterior view
Lateral supracondylar ridge
gives rise to
Brachioradialis
![Page 68: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/68.jpg)
posterior view
Lateral supracondylar ridge
gives rise to
Brachioradialis
![Page 69: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/69.jpg)
posterior view
Lateral supracondylar ridge
gives rise to
Brachioradialis
![Page 70: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/70.jpg)
posterior view
Lateral supracondylar ridge
gives rise to
Extensor Carpi Radialis Longus
![Page 71: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/71.jpg)
posterior view
Lateral supracondylar ridge
gives rise to
Extensor Carpi Radialis Longus
![Page 72: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/72.jpg)
Posterior view
Lateral epicondyle
gives attachment to the common extensor origin
![Page 73: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/73.jpg)
Posterior view
Extensor Carpi Radialis Brevis
Extensor Digitorum
Extensor Carpi Ulnaris
Extensor Digiti Minimi
![Page 74: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/74.jpg)
Posterior view
Anconeus muscle
attaches just below the common extensor origin
![Page 75: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/75.jpg)
Posterior view
Anconeus muscle
attaches just below the common extensor origin
![Page 76: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/76.jpg)
Nerves
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There are 3 nerves closely related to the humerus
![Page 78: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/78.jpg)
There are 3 nerves closely related to the humerus
Axillary nerve
touches the posterolateral aspect of the surgical neck
of humerus
![Page 79: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/79.jpg)
There are 3 nerves closely related to the humerus
Radial nerve
touches the lower end of the spiral groove on the
lateral aspect of the lower part of the humeral shaft
![Page 80: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/80.jpg)
There are 3 nerves closely related to the humerus
Ulnar nerve
touches the posterior aspect of the medial
epicondyle of humerus
![Page 81: Slideshow: Humerus](https://reader035.fdocuments.net/reader035/viewer/2022062218/58715ba01a28ab8e5b8b662d/html5/thumbnails/81.jpg)
There are 3 nerves closely related to the humerus
Axillary nerve
Radial nerve
Ulnar nerve