Anatomy/ Physiology: Skeletal System Flashcards Preview

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Flashcards in Anatomy/ Physiology: Skeletal System Deck (19)
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1

Purpose of Skeletal System

Protect soft tissues, internal organs

Give body shape

Allow for movement

(Store Ca)

(Form Red Blood Cells, White Blood Cells, and Platelets

2

Bones: Skull (Cranium)

6 Cap protects Brain, builds eyes/ face 1. Frontal (1) 2. Parietal (2) 4. Temporal (2) 5. Occiputal (1) (Foramen magnum)

3

Bones: Skull (Cranium) "Foramen Magnum"

Hole in base of skull through which spinal cord connects to the brain

4

Bones: Skull (Face)

17

1. Mandible (1): jaw

2. Maxilla (2): upper lip

3. Zygomatic (2): cheek bones

4. Nasal (2)

5. Sphenoid (1): butterfly behind eyes

6. Ethmoid (1): between lacrimal and sphenoid

7. Lacrimal (2): between Nasal and Ethmoid

8. Vomer (1): inferior to Ethmoid

9. Palatine (2): roof of mouth

10. Inferior Nasal Concha (2)

(11. Hyoid (1): throat)

5

Bones: Skull (Face) "Orbit"

Eye socket Protect eye Made out of Zygomatic, Frontal, Maxilla

6

Bones: Skull (Ear)

6

1. Malleus (2)

2. Incus (2)

3. Stapes (2)

7

Bones: Spinal Column

33 Vertebrae

1. Cervical (7): skull rests on first cervical vertebrae "Atlas"

2. Thoracic (12)

3. Lumbar (5)

4. Sacral (5): fused together "Sacrum"

5. Coccygeal (4): fused together "Coccyx" tailbone

8

Bones: Thorax

27 1. Sternum: manubrium, body, xiphoid process 2. Clavicle (2): collar bone 3. Ribs (12 pairs- 24): anchored to Spinal Column, Sternum via cartilage [5 pairs to Sternum, 5 pair anterior ribs below Sternum, 2 pairs "floating"]

9

Bones: Thorax "Thoracic cavity"

Chest Formed by 12 Thoracic vertebrae and 12 pairs of Ribs Heart, Lungs, Esophagus, Aorta, 2 Venae cavae

10

Bones: Thorax "Intercostal space"

Space between Rib 1 and 2= first intercostal space Space between Rib 2 and 3= second intercostal space etc.

11

Bones: Pelvis

6 Formed by Sacrum, 2 Pelvic Bones (3 bones fused together) 1. Ilium (2): posterior "wings" 2. Pubis (2): anterior 3. Ischium (2): inferior to Pubis

12

Bones: Pelvis "Pubic symphysis"

Anterior joining of Public bones Cartilage within to allow for movement

13

Bones: Upper Extremities

Arms (shoulder girdle to fingertips) 8 1. Scapula (2): posterior, "shoulder blade" 2. Humerus (2): "arm", weightlifting lever 3. Radius (2): thumb side (larger in distal forearm) 4. Ulna (2): pinky/ medial side (larger in proximal forearm)

14

Bones: Upper Extremities- Hands

27 (54 total) 1. Carpals (8): connect to Ulna and Radius-- wrist joint (modified ball and socket) 2. Metacarpals (5): back of hand 3. Phalanges (14): finger bones

15

Bones: Upper Extremities "Shoulder girdle"

Joining of Clavicle, Scapula, Humerus

16

Bones: Lower Extremities

Legs (hip to ankle) 8 1. Femur (2): longest, strongest 2. Patella (2): knee cap 3. Tibia (2): posterior 4. Fibula (2): shin bone

17

Bones: Lower Extremities- Feet

26 (52 total) 1. Talus (1): to Fibula and Tibia 2. Calcaneus (1): heel 3. Navicular (1): distal to Talus 4. Cuboid (1): lateral to Navicular 5. Cuneiform (3): distal to Navicular, medial to cuboid (Lateral, Intermedial, Medial) 6. Metatarsals (5) 7. Phalanges (14): toes

18

Skull 8

Face 17

Thorax 27

Spinal 33

Upper Extremities 8

Hands 54

Pelvis 6

Lower Extremities 8

Feet 52

19

Bones: Joints (three kinds)

Where two bones come in contact (articulation)

Allows to Extend and Flex

Ball and Socket Joint: hip, shoulder

Hinge: elbow, knee