Musles of the thigh
-
Upload
simone-dumbrell -
Category
Documents
-
view
230 -
download
0
Transcript of Musles of the thigh
-
7/29/2019 Musles of the thigh
1/20
Musculoskeletal Anatomy Quiz 2Pelvic girdle
Hip formed by pair (2) hip bones OS COXAE OR COXAL
Connects lower limbs to axial skeleton - with strongest ligaments of the body
Spreads weight from upper body to lower limbs
Supports visceral (gut) organs of body
-
7/29/2019 Musles of the thigh
2/20
ILLIUM
Large flaring bone forms superior region of coxal bone
Consists of body & a superior winglike portionALA
Posterolarteral surface called GLUTEAL SURFACE
Auricular surface articulates with Sacrum (sacroiliac joint)
MAJOR MARKINGS
Iliac Crests
Four spines
Greater sciatic notch
Iliac fossa Arcuate line
Pelvic brim
ISCHIUM
Forms posteroinferior part of hip bone
Thick body articulates with ilium, thinner ramus articulates with pubis
MAJOR MARKINGS
Ischial spine
Lesser sciatic notch
Ischial tuberosity
-
7/29/2019 Musles of the thigh
3/20
PUBIS
Forms anterior portion of hip bone Articulates with ISCHIUM & ILIUM
MAJOR MARKING
Superior & inferior Rami
Pubic crest
Pubic tubercle
Pubic arch
Pubic symphysis
Obturator foramen (along with ilium & ischium
COMPARISON OF MALE/FEMALE PELVIC STRUCTURE
Characteristic Female Male
Bone thickness Lighter, thinner, and smootherHeavier, thicker, and more
prominent markings
Pubic arch/angle 8090 5060
Acetabula Small; farther apart Large; closer together
SacrumWider, shorter; sacral curvature is
accentuatedNarrow, longer; sacral promontory
more ventral
Coccyx More movable; straighter Less movable; curves ventrally
-
7/29/2019 Musles of the thigh
4/20
THE LOWER LIMB 3 Segments of lower limb thigh, leg, foot
FEMUR
Sole bone of the thigh, largest & strongest bone in body
Articulates proximally with hip & distally with TIBIA & FIBULA
MAJOR MARKINGS
Head
Fovea capitis
Greater & lesser trochanters
Gluteal tuberosity
Later & medial condyles
Epicondyles
Linea aspera
Patellar surface
Intercondylar notch
-
7/29/2019 Musles of the thigh
5/20
Movements at the hip
-
7/29/2019 Musles of the thigh
6/20
MUSCLES CROSSING HIP & KNEE JOINTS
The most anterior compartment muscles of hip & thigh FLEX femur at hip & extend leg at knee
Posterior compartments muscles of hip & thigh EXTEND thigh & flex leg
Medial compartment muscles ADDUCT the thigh
The 3 groups are enclosed by the FASCIA LATA
MOVEMNTS OF THIGH AT HIP Ball & socket hip joints allows FLEXION, EXTENSION, ADDUCTION, CIRCUMDUCTION, ROTATION
Most important thigh FLEXERS are ILIPSOAS (prime mover), TENSOR FASCIAE LATAE & RECTUS
FEMORIS
Medially located ADDUCTOR muscles & SARTORIUS assist in thigh FLEXION
Thigh EXTENSION primarily effected by HAMSTRING muscles (BICEPS FEMORIS, SEMITENDINOSUS, &
SEMIMEMBRANOSUS)
Forceful extension helped by GLUTEUS MAXIMUS
ABDUCTION & ROTATION effected by GLUTEUS MINIMUS & ANTAGONIZED by LATERAL ROTATERS
5 ADDUCTOR muscles control ADDUCTION of thigh (ADDUCTOR MAGNUS, ADDUCTOR LONGUS,ADDUCTOR BREVIS, PECTINEUS & GRACILIS)
-
7/29/2019 Musles of the thigh
7/20
-
7/29/2019 Musles of the thigh
8/20
-
7/29/2019 Musles of the thigh
9/20
-
7/29/2019 Musles of the thigh
10/20
-
7/29/2019 Musles of the thigh
11/20
-
7/29/2019 Musles of the thigh
12/20
-
7/29/2019 Musles of the thigh
13/20
-
7/29/2019 Musles of the thigh
14/20
-
7/29/2019 Musles of the thigh
15/20
-
7/29/2019 Musles of the thigh
16/20
-
7/29/2019 Musles of the thigh
17/20
-
7/29/2019 Musles of the thigh
18/20
-
7/29/2019 Musles of the thigh
19/20
MOVEMENTS OF THE KNEE JOINTS
QUADRICEPS FEMORIS sole extensor of knee joints
ANTAGONIST to quadriceps femoris are the hamstring muscles that flex the knees
-
7/29/2019 Musles of the thigh
20/20
Knees and legsLibrary