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Flashcards in A&P 1.14 Deck (42)
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Biceps brachii

A, O, I

Named for # heads and location
Brachii means arm

A- flex the elbow (radiolunar joint), supinate the forearm (radiolunar joint)

O- short head: coracoid process of scapula
Long head: supraglenoid tubercle of scapula

I- radial tuberosity

1

Biceps brachii

Antagonists

Triceps is on the back or posterior aspect of the arms: it extends the elbow.

Biceps is on the front or anterior aspect of the arm: it flexes the elbow.

2

Bones to know

Scapula
Clavicle
Humerus
Ulna
Radius
Carpals
Metacarpals
Phalanges

3

Bony landmarks

Glenoid fossa
Supra-glenoid

Xxxxxxxx

4

Bones of arm and shoulder

Review and know

5

Histology of bones

type of connective tissue
widely spaced cells separated by matrix
matrix 25% water, 25% collagen fibers & 50% crystalized mineral salts
4 types of cells in bone tissue

6

Tendons

fibrous regular connective tissue, look like ropes or bands and conect muscle to bone

7

Periosteum

Define

Dense, white fibrous membrane (dense irregular CT)
Covers the bone except at joint surfaces
Peri- around. -osteum - bone

It needs to be dense and irregular or strong to resist pull of muscles on the bone so that any direction it gets pulled it's reinforced. With muscle and joints there are multiple directions may get pulled at one time.

8

Periosteum

Additional information

Muscle tendon fibers are going to interlace with periosteal fibers and some connect to the bone itself

The CT components of the muscle (epi, peri, and endomysiums) are continuous with similar wrappings around collagen ropes in the tendon. The extensions of these wrappings and ropes are continuous with the periosteum and the bone itself, this makes the bones part of the continuous fibrous network.

9

Attachment of muscle to bone

Tendon- dense regular fibrous CT
Endo, epi, and perimysium

Mysium/muscle flows into endo, peri, and endomysium flow together to become tendons flow into periosteum attaches to bone

10

Types of bones

Long bones
Short bones
Flat bones
Irregular bones
Sesamoid bones

11

Long bones

Bones are Long with hollow shafts and expanded articular ends

Examples:

Femur, tibia, fibula, humerus, radius, ulna, metacarpals, metatarsal and phalanges

12

Short bones

Cubed or box shaped about as broad as they are long.

Examples: carpals and tarsals

13

Flat bones

Broad and thin, often curved

Examples: ribs, scapula, cranial bones, ilium, sternum

14

Irregular bones

Various sizes and shapes

Examples: vertebrae, fascial bones,

15

Sesamoid bones

Completely enclosed in a tendon

Examples: patella, pisiform, and two small bones on the plantar surface of the metatarsal

16

Axial skeleton

80 bones
74 upright axis, 6 in middle ear
Lie along longitudinal axis

Skull, hyoid, vertebrae, ribs, sternum, ear ossicles

Skull bones: cranial (8) and fascial (14) bones
Skull bones: Protect the brain & house ear ossicles

17

Appendicular skeleton

126 bones: upper & lower limbs, pelvic & pectoral girdles

30 bones in each upper and lower limb

Joints: shoulder (gh)

18

appendicular skeleton

joints

shoulder: glenohumeral
elbow:
wrist:
metacarpophalangeal
interphalangeal

19

Pronation

Away from observer

Prone to spill

20

Supination

Towards observer

Holding a bowl of soup

21

Scapula

Supraglenoid tubercle
Coracoid process
Spine
Axillary border
Infraglenoid tubercle

22

Know scapula bony landmarks

Know

23

Radius and ulna bony landmarks

See. Diagrams

24

Sutural bones

In joint between skull bones

25

how are fingers and toes numbered?

largets to smallest

26

bones of the skull

general

completely separate both embryologically and evolutionarily

facials are more primitive

27

facial bones

lacrimal

lacrimal = tears

28

facial bones

palatine

palatine = royal

29

facial bones

vomer

vomer = plow shaped