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human anatomy > Chapter 8 Revised > Flashcards

Chapter 8 Revised Flashcards

1
Q

Supination

A

Palm is anterior (like holding soup)
-radius and ulna are parallel

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2
Q

Muscles involved in supination

A

Supinator

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3
Q

Supinator

A

-wraps around proximal radius
-assist the bicep branchii

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4
Q

Pronation

A

Palm is posterior
-radius and ulna are crossed

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5
Q

Muscles that aid in pronation

A

-pronator teres
-pronator quadratus

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6
Q

Flexors (action)

A

Decrease the joint angle
-anterior muscles

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7
Q

What are the three flexors

A

-bicep branchii
-branchialis
-brachioradialis

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8
Q

LONG bicep branchii origin and interception

A

O: tubercole of scapula
I: radial tuberosity

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9
Q

SHORT biceps branchii origin and insertion

A

O: coracoid of scapula
I: radial tuberosity

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10
Q

Biceps Branchi (Action and Muscle Group)

A

Flexes the arm muscles of numerous
-anterior muscle

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11
Q

Branchialis origin and insertion

A

O: distal anterior surface of numerous
I: ulnar tuberosity and coronoid process of ulna

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12
Q

Branchialis (Action and Muscle Group)

A

Flexes the arm muscles of the humorous
-anterior muscle

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13
Q

Brachioradialis origin and intercept

A

O: lateral border of distal end of numerous
I: styloid process of radius

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14
Q

Brachioradialis (Action and Muscle Group)

A

Flexes the arm muscles of the humerous
-anterior muscle

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15
Q

Are flexors anterior or posterior?

A

Anterior

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16
Q

Extensors

A

Returns angle to normal
-posterior muscles

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17
Q

What are the two extensor muslces

A

-ancounes
-triceps (three) branchii

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18
Q

Ancounes origin and insertion

A

O: lateral epicondyle of humerous
I: olecranon of ulna

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19
Q

Ancounes (Action and Muscle Group)

A

Extend the arm muscles of the humerous
-posterior muscle

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20
Q

LONG tricep branchii origin and insertion

A

O: tubercole of scapula
I: olecranon of ulna

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21
Q

LATERAL tricep branchi origin and intersect

A

O:posterior surface of humerous above radial groove
I:olecranon of ulna

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22
Q

MEDIAL triceps branchii origin and insertion

A

O: entire surface of the humerous to a groove
I: olecranon of ulna

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23
Q

Triceps branchii (Action and Muscle Group)

A

Extensor arm muscles of the humerous
-posterior muscles

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24
Q

Common origin of posterior compartment of muscles

A

O: lateral epicondyle

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25
Q

Posterior compartment of extensor muscles (action)

A

Extends the wrist at MP and IP

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26
Q

Extensor carpi radialis longus (Action and Muscle Group)

A

Extends and abducts hand at wrist
-posterior extensor muscles
-superficial

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27
Q

Extensor carpi radialis brevis (Action and Muscle Group)

A

Extends and abducts hand at the wrist
-posterior extensor muscle
-superficial

28
Q

Extensor digitorium (Action and Muscle Group)

A

Extends wrist, MP, PIP, DIP and finger joint 2 to 5
-posterior extensor muscle
-superficial

29
Q

Extensor digiti minimi (Action and Muscle Group)

A

Innervates the 5th finger
-posterior extensor muscle
-superficial

30
Q

Extensor carpi ulnaris (Action and Muscle Group)

A

Extend the wrist and abducts the hand
-posterior extensor muscle
-superficial

31
Q

Abductor policies longus (Action and Muscle Group)

A

Abducts joints of thumb and hand
-posterior extensor muscle
-deep

32
Q

Extensor policies longus (Action and Muscle Group)

A

Innervates the joints of the thumb and abducts the hand
-posterior extensor muscle
-deep

33
Q

Extensor pollicis brevis (Action and Muscle Group)

A

Extends MP joints of the thumb
-posterior extensor muscles
-deep layer

34
Q

Extensor indicis (Action and Muscle Group)

A

Extends MP, PIP, DIP of index finger
-posterior extensor muscle
-deep layer

35
Q

Anterior forearm muscle

A

-extrinsic and flexor
-flexes the wrist, MP and IP

36
Q

Origin of anterior forearm muscles

A

O: medial epicondyle of humerous

37
Q

Flexor digitorium (Action and Muscle Group)

A

Splits and inserts on middle phalanges of finger 2 to 5
-crosses over wrist, MP, proximal IP of fingers 2 to 5
-anterior forearm muscle
-intermediate

38
Q

Pronator teres (Action and Muscle Group)

A

-anterior forearm muscle
-superficial

39
Q

Flexor carpi radialis (Action and Muscle Group)

A

Flexes and abducts at wrist and pinky
-anterior forearm muscles
-superficial

40
Q

Palmaris longus (Action and Muscle Group)

A

Flex at wrist joint
-anterior forearm muscles
-superficial

41
Q

Flexor carpi ulnaris (Action and Muscle Group)

A

Flexes at wrist joint
-anterior forearm muscle
-superficial

42
Q

Flexor policies longus (Action and Muscle Group)

A

Flexes MP and IP joint of the thumb
-anterior forearm muscle
-deep layer

43
Q

Flexor digitorium profundus (Action and Muscle Group)

A

Flexes wrist, MP, PIP and DIP of fingers 2 to 5
-deep anterior forearm muscles

44
Q

Proximal carpals

A

Scaphoid
Lunate
Triquentrum
Pisiform

45
Q

Distal carpals

A

Trapezium
Trapezoid
Capitate
Hamate

46
Q

How many phalanges are there

A

14
-each finger has three but thumb only has proximal and distal

47
Q

Deep layer of anterior forearm muscles (two)

A

-flexor policies longus
-flexor digitorium profundus

48
Q

Intermediate layer of anterior muscles (1)

A

-flexor digitorium

49
Q

Superficial layer of anterior forearm muscles (4)

A

-pronator teres
-flexor carpi radialis
-palmaris longus
-flexor carpi ulnaris

50
Q

Superficial layer of posterior forearm muscles (5)

A

-extensor carpi radialis longus
-extensor carpi radialis brevis
-extensor digitorium
-extensor digiti minimi
-extensor carpi ulnaris

51
Q

Deep layer of posterior forearm muscles (4)

A

-abductor policies longus
-extensor policies brevis
-extensor policies longus
-extensor indicis

52
Q

Function of the Thenar group

A

Forms the thick and fleshy mass at the base of the thumb

53
Q

Muscles of the thenar group (3)

A

-flexor pollicis brevis
-adductor pollicis brevis
-opponents pollicis

54
Q

Flexor pollicis brevis (Action and Muscle Group)

A

Flexes thumb at carpometeacarpal and metacarpohpalangeal joint
-thenar group

55
Q

Adductor pollicis brevis (Action and Muscle Group)

A

Adduct thumb at carpometacarpal joint
-thenar group

56
Q

Opponens pollicis (Action and Muscle Group)

A

Moves thumb across palm to meet any finger
-opposition
-thenar group

57
Q

Hypothenar group

A

Forms a smaller fleshy mass at the base of the little finger

58
Q

Muscles of the hypothenar group (3)

A

-flexor ligitti minimi brevis
-abductor digiti minimi
-opponens digiti minimi

59
Q

Flexor ligitti minimi brevis (Action and Muscle Group)

A

Flexes little finger at carpometacarpal and MP joint
-hypothenar group

60
Q

Abductor digiti minimi (Action and Muscle Group)

A

Abduct and flex little finger at MP joints
-hypothenar group

61
Q

Opponens digiti minimi (Action and Muscle Group)

A

Moves the little finger across the palm to meet the thumb
-opposition
-hypothenar group

62
Q

Midpalmar group

A

Occupies space between thenar and hypothenar groups

63
Q

Muscles of the midpalmar group

A

-lumbrical muscles
-dorsal interossei muscles
-palmar interossei

64
Q

Lumbrical muscles (Action and Muscle Group)

A

Flex the MP and extend PIP and DIP joints of fingers 2 to 5
-midpalmar group

65
Q

Dorsal interossei muscles

A

Located between metacarpals
-flex MP and extend PIP and DIP of finger 2 to 5
-midpalmar group

66
Q

Palmar interossei (Action and Muscle Group)

A

Adduct and flex each finger at MP joint, extend IP joints
-midpalmar group

67
Q

Origin of anterior forearm muscles

A

Medial epicondyle of humerous

human anatomy (15 decks)

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