Skeleton And Joints

1. What are the four major functions of the skeleton?

Muscle contraction

Digestion

Respiration

-Shape and support
-Protection (The rib cage- Protects heart and lungs. The skull-protects the brain)
-Movement (because of joints between our bones)
-Blood production (Blood is made in the bone marrow)

The correct answer includes functions related to shape and support, protection, movement, and blood production. Muscle contraction, digestion, and respiration are not functions of the skeleton.

Explanation

The correct answer includes functions related to shape and support, protection, movement, and blood production. Muscle contraction, digestion, and respiration are not functions of the skeleton.

2. What are the four main types of bone?

Dense: Sternum, femur, and clavicle

-Irregular: Patella, vertebrae and sternum
-Flat: Cranium, pelvis and scapula
-Long: Clavicle, humerous, radius, ulna, femur, fibula and tibia.
Short: Carpuls, metacarpuls, tarsals, metatarsals and phalanges.

Hollow: Ribs, scapula, and metacarpal bones

Round: Sacrum, coccyx, and scaphoid

The four main types of bone are irregular, flat, long, and short based on their shape and structure. Each type serves specific functions in the body and can be identified based on their characteristics and location.

Explanation

The four main types of bone are irregular, flat, long, and short based on their shape and structure. Each type serves specific functions in the body and can be identified based on their characteristics and location.

3. What are the different types of joints and give examples?

-Immovable joints-skull, pelvis.
-Slightly movable joints-The joints between the vertebrae in the spine are cartilaginous joints.
-Freely movable or synovial joints- shoulder and knee. Synovial joints contain synovial fluidn which is kept inside a pocket called synovial membrane.

Condyloid joints- wrist and fingers

Hinge joints- ball and socket

Pivot joints- elbow and ankle

The correct answer lists the different types of joints with examples, while the incorrect answers provide other types of joints along with examples to confuse the test-taker.

Explanation

The correct answer lists the different types of joints with examples, while the incorrect answers provide other types of joints along with examples to confuse the test-taker.

4. What are the different types of movement?

-Flexion: Bending of a joint. (occurs at the knee as the foot is drawn to kick a ball)
-Extension: Straightening of a limb at a joint. (When shooting a ball, elbow i straightened during release)
-Abduction and adduction: Abduction is moving limb towards body. adduction is moving limb away from body.
Rotation: Moving the head from side to side.

-Contraction: Decrease in the size of an object.

-Translation: Movement in a straight line.

-Expansion: Increase in the size of an object.

The correct types of movement involve Flexion, Extension, Abduction, Adduction, and Rotation. Translation, Expansion, and Contraction are not specific types of movements related to joints and limbs.

Explanation

The correct types of movement involve Flexion, Extension, Abduction, Adduction, and Rotation. Translation, Expansion, and Contraction are not specific types of movements related to joints and limbs.

5. Label the synovial joint.

A

B

C

L

In this question, the correct answer is 'l' as it represents a synovial joint. A synovial joint is a type of joint that allows for a wide range of movement and is surrounded by a synovial membrane that produces synovial fluid to lubricate the joint.

Explanation

In this question, the correct answer is 'l' as it represents a synovial joint. A synovial joint is a type of joint that allows for a wide range of movement and is surrounded by a synovial membrane that produces synovial fluid to lubricate the joint.

6. Name all the bones in the picture.

L

B

A

C

The correct answer is 'l' as it is the only bone visible in the picture. Options 'a', 'b', and 'c' are incorrect as they do not correspond to any bone shown.

Explanation

The correct answer is 'l' as it is the only bone visible in the picture. Options 'a', 'b', and 'c' are incorrect as they do not correspond to any bone shown.