Lesson 14 Bones and Muscles

Marie Jaja T. Roa- SANTA MARIA WEST CENTRAL SCHOOL- Division of Ilocos Sur

LESSON 14: BONES AND MUSCLES

Chapter 1: Major Organs of the Human Body


The skull is a bony structure that forms the head of the skeleton in most vertebrates.


The skull helps protect the brain.


Ball-and-sockets joints protect the eyes

backboneThe spinal or

backbone runs from the base of the skull to the pelvis.


It serves as a pillar to support the body’s weight and protect the spinal cord.


Spinal cord

Spinal cord


Uses of spinal cord


ribs

The ribs form a protective cage around the heart and lungs.


Pelvic bones

The pelvic bones support our body when we sit.


The bones in our body are also connected with each other.


joints

The point where two bones meet and connect is called joint.


Our joints and muscles allow our bones to move.

The movements of our body originate in our joints.


Muscles form the fleshy parts of the body.They enable our body to move.


Muscles expand and contract to help bones move.


They also give shape and forms to our body and protect delicate organs.

Muscles are voluntary or involuntary.


Voluntary muscles are attached to bones and can be controlled

Voluntary muscles are muscles that you have the ability to control, like your arms, legs, face muscles, etc.


Examples of actions that you can control


Involuntary muscles are controlled by the nervous system and cannot be controlled consciously...

…like the smooth muscles in the walls of many internal organs such as stomach, esophagus, diaphragm and walls of blood vessels.


Examples of actions that you CANNOT control


What covers the bones?How do muscles help the bones to move?What are voluntary and involuntary muscles?What are the bones that protect the internal organs?


Which set of bones protects the lungs and liver?What organ is protected by the skull?What are the important bones in our body?What is the function of skull?ball-and-sockets?backbones?pelvic bones?


Why is our body made up of different types of bones and muscles?How are bones connected?What are the functions of muscles?


Full of BodiesBy Jennifer Prescott

From my fingers to my toes, I’m full of bones.If you count them all as one, they make a

skeleton.From my fingers to my toes, I’m full of bones.

My smallest bone is found inside my ear.The stirrup helps me hear, many sounds both far

and near.My smallest bone is found inside my ear.


My longest bone is found inside my leg.My femur’s really great,

‘cause it helps me stand up straight.My longest bone is found inside my leg.

My joints help my bones to move around.My hips, elbows, and knee, oh it’s all so plain to

see,That my joints help my bones to move around.


Where can you find the smallest bone in your body?Where can you find the longest bone in your body?What are the bones mentioned in the poem? Can you feel them?Are your bones hard? Can they be broken?


COMMON INJURIES IN

SPORTS AND GAMES

Lesson 14 Bones and Muscles

Education

Transcript of Lesson 14 Bones and Muscles