Skeletal Sytstem

Question 1

Main functions of the skeleatal system

Answer 1

supports the body
facilitates movement
protects internal organs
produces blood cells
stores and releases minerals and fat

Question 2

Total # of bones in human body (ADLT)

Answer 2

206

Question 3

list the bones in the axial skeleton

Answer 3

skull, thoracic cage, & vertebratal column.

Question 4

number of head bones

Answer 4

22

Question 5

number of spinal bones

Answer 5

24

Question 6

number of thoracic cage bones

Answer 6

25 (12 pairs of ribs and the sternum)

Question 7

number of bones in the skull

Answer 7

8 (Frontal, Parietal, Occipital, Temporal, Sphenoid, ethmoid, auditory ossicles, external auditory meatus)

Question 8

Number of bones in the face

Answer 8

8 (zygomatic, maxillary, palatine, lacrimal, inferior concha, comer, mandible, hyoid)

Question 9

Describe the structure for spine

Answer 9

A series of flexible inverterbratal discs encasing a spinal cord

Question 10

Types of vertebrae

Answer 10

cervical (c1-c7) Throacic (t1-t12) Lumbar (l1-l5) Sacrum & coccyx

Question 11

Describe the rib cage

Answer 11

12 pairs of ribs with intercostal cartilage all meeting in the center (the sternum)

Question 12

Describe the RIB SETS

Answer 12

7 true ribs, 3 false ribs (attached to cartillage), and 2 floating ribs (not attatched to sternum)

Question 13

Describe the Sternum

Answer 13

3 parts (the manubrium, body, and xiphoid process)

Question 14

define the appendicular skeleton

Answer 14

the upper and lower limbs

Question 15

Describe the pectoral girdle

Answer 15

scapula (shoulder blades) clavicle, and the acromion (edge of the clavicle)

Question 16

Bones of the arm

Answer 16

Humerus (upper arm), radius (thumb-side of forearm) and ulna (pinky side)

Question 17

Bones of wrist and hand

Answer 17

carpals (wrist bones), metacarpals (palm), phalanges (finger and toe bones)

Question 18

Bones of the pelvic region

Answer 18

Pelvic girdle (hip bones), illium (largest part of hip bone), ischium (lower portion of pelvic girdle), pubis (anterior portion), pelvis (entire thing), and acetabulum (the socket)

Question 19

Bones of the leg

Answer 19

Femur (thigh bone), patella, tibia (shin) and fibula (smaller leg bone)

Question 20

Bones of the ankle and feet

Answer 20

7 tarsals (ankle bones), malleolus (bony thing on your ankle), talus (top bones of the foot), calcaneus (heel), metatarsals (foot bones), and phalanges

Question 21

Synathrosis

Answer 21

NO joint movement

Question 22

Amphiarthrosis

Answer 22

Some movement

Question 23

Diarthrosis

Answer 23

Free movement

Question 24

Structures assosciated with joints

Answer 24

Cartilage, synovial membrane, synovial fluid, ligaments (connects bone to bone), tendons (muscle to bone), bursa, meniscus

Question 25

Flexion and extension

Answer 25

Occurs in saggital plane. Flexion- anterior/forward movement Extension- posterior/backward (think bending back or forward)

Question 26

Abduction and Adduction

Answer 26

works within frontal plane Abduction- moving something latertally away from the body Adduction- bringing something back towards the body (think shoulder joint)

Question 27

Circumduction

Answer 27

Circular movement

Question 28

Rotation

Answer 28

occurs at a pivot joint or ball and socket

Question 29

Supination and Pronation

Answer 29

Occurs in the forearm directing the position of the radius and ulna Supination- radius and ulna are parellel (front facing palm) Pronated- radius and ulna make X shape (backwards palm)

Question 30

Dorsiflexion and Plantar Flexion

Answer 30

Occurs at ankle joint Dorsiflexion- tilting the foot up towards the tibia Plantar flexion- pointing toe towards the ground

Question 31

Inversion and Enversion

Answer 31

Multiple joint movement that brings the joint towards or away from the midline of the body Inversion- going towards the midline Eversion- away from the midline

Question 32

Protraction and Retraction

Answer 32

Movements of the scapula or mandible Protraction- shoulder is moved foward Retraction- shoulder is moved back

Question 33

Depression and elavation

Answer 33

Upwards and downwards movement of the mandible and scapula