General anatomy Myology Flashcards Preview

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Flashcards in General anatomy Myology Deck (65)
1

What muscles make up the Rotator Cuff?

SITS- Supraspinatus, Infraspinatus, Teres Minor, Subscapularis

2

Supraspinatus Action
Infraspinatus Action

S: ABduction
I: external rotation

3

Supraspinatus & Infraspinatus: Nerve S., Blood S., Origin/insertion

N: Suprascapular
B.S: Suprascapular
O.I: fossa of scapula/ greater tubercle of humerus

4

Teres minor: Nerve, Blood S., O/I, Action

B.S: scapular circumflex
N: Axillary
A: external rot.
O.I: lat. border dorsal scapula/ greater tubercle of humerus

5

Subscapular: Nerve, Blood, O/I, Action

N: subscapular
B: lat. thoracic, subscapular
A: Internal rot.
O.I: subscapular fossa of scapula/ lesser tubercle of humerus

6

Latissimus Dorsi: Nerve, Blood, Action

N: thoracodorsal
B: descending scapular
A: extension, int. rot. of arm

7

Trapezius: Nerve, Blood, Action

N: Spinal acc.
B: descending scapular
A: Adduct scapula

8

Rhomboid: nerve, blood, action, O/I

N: Dorsal scapular
B: descending scapular
A: scapular retraction
O/I: SP of C7 & T1 (minor); SP of T2-T5 (major)/ Scapula (both)

9

Serratus Ant.: Nerve, Blood, Action

N: long thoracic
B: descending scapular
A: adheres scapula to chest wall

10

Deltoid: Nerve, Blood, Action, O/I

N: descending scap
B: Axillary
A: ABduction of arm
O/I: trap, clavicle, acromion, spine of scapula/ deltoid tuberosity of humerus

11

Teres Major: Nerve, Blood, Action

N: subscapular
B: descending scap
A: ext. med. rot. ADDucts arm

12

Pec. Major: Nerve, Blood, Action

N: medial pectoral
B: descending scap
A: draws sacpula forward

13

what muscles make up the post. compartment of the Arm? Nerve, Blood, Action, O/I

Triceps & Anconeus
N: Radial
B: Brachial
A: extension
O/I: olecranon process of the ulna

14

What muscles make up the Ant. compartment of the Arm?

Biceps brachaii
brachialis
brachioradialis
coracobrachialis
pronator teres

15

what nerve supplies the Biceps Brachii, brachialis, coracobrachialis? Brachioradialis? Pronator Teres?

Musculocutaneous
Radial
Median

16

What is Blood supply of Biceps Brachii, brachialis, coracobrachialis, Brachioradialis? Pronator Teres?

Brachial
Ulnar

17

Common action of Biceps Brachii, brachialis, coracobrachialis?

flexes elbow

18

O/I of biceps brachii?

Short head: O: Coracoid process
Long head: O: supraglenoid tubercle of scapula
I: radial tuberosity

19

Forearm Ant. Compartment muscles

1.Biceps brachii
2.flex. radialis
3.flex carpi ulnaris
4.flex dig. prof.
5.pronator teres
6.flex pollicis long
7.palmaris longus

20

Nerve supply of ant. comp. forearm:
1.Biceps brachii
2.flex. radialis
3.flex carpi ulnaris
4.flex dig. prof.
5.pronator teres
6.flex pollicis long
7.palmaris longus

1. musculocutaneous
2,5,6,7: median
3. ulnar
4. 1/2 median, 1/2 ulnar

21

Blood supply of ant. comp. forearm:
1.Biceps brachii
2.flex. radialis
3.flex carpi ulnaris
4.flex dig. prof.
5.pronator teres
6.flex pollicis long
7.palmaris longus

Ulnar

22

Common action of ant. comp. forearm:.

flexion

23

post. compartment forearm muscles?

1.Ext. carpi radialis longus
2.brevis
3.ext. carpi ulnaris

24

Nerve supply post. compartment forearm muscles?
1.Ext. carpi radialis longus
2.brevis
3.ext. carpi ulnaris

1,2: radial
3. post. interosseus

25

Blood supply post. compartment forearm muscles?
1.Ext. carpi radialis longus
2.brevis
3.ext. carpi ulnaris

Ulnar

26

Action of post. compartment forearm muscles?
1.Ext. carpi radialis longus
2.brevis
3.ext. carpi ulnaris

1,2: extends & ABducts wrist
3: extends 7 ADDucts wrist

27

Levator Ani ie?

floor pelvic cavity

28

Levator Ani Nerve, blood, action, O/I?

N: pudendal plexus
B: int. pudendal, inf. rectal
A: constricts rectum & vagina cavity
O/I: Pubis, ischial spine/ coccyx

29

Shortest muscle in the body?

stapedius

30

longest muscle in the body?

sartorius

31

what makes up the quadriceps?

rectus femoris
vastus lateralis
vastus medialis
vastus intermedius

32

what makes up the ant. compartment of thigh?

1. rectus femoris
2.vastus lateralis
3.vastus medialis
4.vastus intermedius
5.sartorius
6.iliopsoas

33

nerve & blood supply of the ant. compartment of thigh?

N: Femoral
B: Femoral

34

what makes up the "tailors muscle"?

rectus femoris, sartorius

35

Common insertion of quads?

patella

36

Common action of ant. compartment of thigh?
1. rectus femoris
2.vastus lateralis
3.vastus medialis
4.vastus intermedius
5.sartorius
6.iliopsoas

flexion (1,5,6) & extension (2,3,4)

37

muscles of medial compartment of thigh?

1. adductors
2. gracilis
3. pectineus

38

Nerve/ blood supply
1. adductors
2. gracilis
3. pectineus

N: 1,2:obturator; 3. femoral (some obturator)
B: obturator

39

Common action of med. comp. of thigh
1. adductors
2. gracilis
3. pectineus

ADDucts

40

what are the Adductors?

magnus, longus, brevis

41

what does the pectineus overlie?

Add. brevis, & longus

42

what are the "hamstrings" or post. comp. of thigh?

1. biceps femoris
2. semitendinosus
3. semimembranosus

43

Nerve/ blood supply of hamstrings?

N: tibial
B: deep femoral

44

actions of hamstrings
1. biceps femoris
2. semitendinosus
3. semimembranosus

1. flex and lat. rot knee, extends thigh
2,3. flex and med. rot. knee, extends thigh

45

O/I of hamstrings
1. biceps femoris
2. semitendinosus
3. semimembranosus

1. long: ischial tuberosity; short: linea aspera/ fibula
2, 3: ischial tub./ tibia

46

lateral comp. of thigh muscles?

1. TFL
2. Glut medius, minimus
3. Glut max.

47

Nerve/ Blood supply of lat. comp. thigh
1. TFL
2. Glut medius, minimus
3. Glut max.

B: Inferior gluteal
N: 1,2: sup. gluteal
3.: Inferior Gluteal

48

Ant. comp. of leg muscles?

1. tibialis ant.
2. ext. dig. longus
3. ext. hallucis longus

49

Nerve/ Blood supply of Ant. comp. of leg muscles?
1. tibialis ant.
2. ext. dig. longus
3. ext. hallucis longus

N: deep peroneal aka: ant. tibial
B: anterior tibial

50

Common action of Ant. comp. of leg muscles?
1. tibialis ant.
2. ext. dig. longus
3. ext. hallucis longus

dorsiflexion

51

post. comp. of leg muscles?

1. gastrocnemius
2. soleus
3. popliteus
4. plantaris

52

nerve/blood supply of post. comp. leg
1. gastrocnemius
2. soleus
3. popliteus
4. plantaris

N: tibial
B: posterior tibial

53

Common action of post. comp. leg
1. gastrocnemius
2. soleus
3. popliteus
4. plantaris

plantar flexes foot

54

lat. comp. of leg muscles? Nerve/Blood supply, Action, O/I?

peroneus longus, peroneus brevis
N: superficial peroneal (Fibular)
B: anterior tibial/ peroneal
A: plantar flex & evert foot
O/I: lat. tibia-fibula/ med. cuneiform & base of 1st metatarsal

55

Myoblasts?

embryonic mesoderm: smooth or cardiac muscle
makes muscle

56

mesodermal "blocks" (somites)?

skeletal muscle: embryonic mesoderm

57

Skeletal histology

striated; multi-nucleated

58

cardiac histology

striated
uni-nucleated at the intercalated discs
smooth: spindle shaped with central nuclei

59

Agonistic?

prime movers

60

synergistic?

supports movement

61

antagonistic

opposite movers

62

internal organs begin to form?

2nd month

63

efferent cranial nerves develop?

basal plate

64

thymus gland develops from?

3rd pharyngeal pouch

65

pharyngeal tonsil develops from?

2nd pharyngeal pouch