Skeletal System

Question 1

Skeletal system makes up the framework of the human body. It is responsible for providing shape and support, protecting internal organs, and serving as a storage place for mineral salts, calcium, and phosphorus. It plays an important role in the formation of blood cells and in providing an area for the attachment of skeletal muscles. What are the 2 divisions that compose the skeletal system and how many bones are in each?

Answer 1

The 206 bones are divided into: the Axial skeleton (80 bones), and the Appendicular skeleton (126 bones)

Pg(533)

Question 2

6 main functions of bone:

Answer 2

• Provide shape, support, And the framework of the body
• Protection for the body’s internal organs
• Serving as a storage place for mineral salts, calcium, and phosphorus
• Playing an important role in the formation of blood cells (hemopoiesis/hematopoiesis), takes place in the bone marrow
• Providing an area for the attachment of skeletal muscle
• Helping to make movement possible through articulation

(535)

Question 3

Joint is called an _____, Is located at the place where two bones connect. Joints are classified according to the type of movement they provide. What are 3 types of joints? What do each do?

Answer 3

—An articulation

1. Synarthrotic joint: Produces no movement. Exp cranial suture
2. Amphiarthrotic joint: Permits very slight movement. Exp vertebrae
3. Di-arthrotic joint: Allows for free movement in a variety of directions. Exp elbow, wrist, hip, and knee. Allows for several types of body movements.

(537)

Question 4

The process of moving a body part away from the midline is

Answer 4

Abduction

Question 5

The process of moving a body part toward the midline is

Answer 5

Adduction

Question 6

The process of moving a body part in a circular motion is

Answer 6

Circumduction

Question 7

The process of bending a body part backward is

Answer 7

Dorsiflexion

Question 8

The process of turning outward is

Answer 8

Eversion

Question 9

The process of straightening a flexed limb or the spine is

Answer 9

Extension

Question 10

The process of bending (or curving) A flexed limb or the spine is

Answer 10

Flexion

Question 11

The process of turning inward

Answer 11

Inversion

Question 12

The process of lying face down/the process of turning the hand so that the palm points downward is

Answer 12

Pronation

Question 13

The process of moving a body part forward is

Answer 13

Protraction

Question 14

The process of moving a body part backward is

Answer 14

Retraction

Question 15

The process of moving a body part around a central axis is

Answer 15

Rotation

Question 16

The process of lying face upward/the process of turning the palm or foot upward is

Answer 16

Supination

Question 17

Axial skeleton consists of:

Head, skull and face each have how many bones?

Answer 17

Skull, the sternum, the ribs, the vertebrae(cervical:7 thoracic:12 lumbar:5) the sacrum, and the coccyx/tailbone.

head: 22 bones
skull: 8 bones
face: 14 bones

Pg (538)

Question 18

The appendicular skeleton is responsible for movement, consists of:

Answer 18

The upper and lower extremities (upper=the humerus, radius, ulna, carpals,metacarpals, phalanges, lower= Femur, patella, tibia, fibula, tarsals, metatarsals, and phalanges)
The clavicles, the scapula, and the pectoral girdle girdle(ilium, ishium, pubis, sacrum, coccyx)

(539)

Question 19

Male pelvis is

Female pelvis is

Answer 19

The male pelvis is shaped like a funnel and narrower than the females, it’s stronger and heavier than the female pelvis making it more suited for lifting and running.

The female pelvis is formed to support pregnancy and childbirth, Besen like appearance, broader rounder and lighter than the mail pelvis.

(539)

Question 20

A dislocation occurs when a bone slips out of the joint. What is the procedure known as that is used to align and reposition the joint?

Answer 20

Reduction (546)

Question 21

Different types of fractures

Answer 21

Pg 546