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human anatomy > Chapter 8 Revised > Flashcards

Chapter 8 Revised Flashcards

(67 cards)

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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
Posterior compartment of extensor muscles (action)
Extends the wrist at MP and IP
26
Extensor carpi radialis longus (Action and Muscle Group)
Extends and abducts hand at wrist -posterior extensor muscles -superficial
27
Extensor carpi radialis brevis (Action and Muscle Group)
Extends and abducts hand at the wrist -posterior extensor muscle -superficial
28
Extensor digitorium (Action and Muscle Group)
Extends wrist, MP, PIP, DIP and finger joint 2 to 5 -posterior extensor muscle -superficial
29
Extensor digiti minimi (Action and Muscle Group)
Innervates the 5th finger -posterior extensor muscle -superficial
30
Extensor carpi ulnaris (Action and Muscle Group)
Extend the wrist and abducts the hand -posterior extensor muscle -superficial
31
Abductor policies longus (Action and Muscle Group)
Abducts joints of thumb and hand -posterior extensor muscle -deep
32
Extensor policies longus (Action and Muscle Group)
Innervates the joints of the thumb and abducts the hand -posterior extensor muscle -deep
33
Extensor pollicis brevis (Action and Muscle Group)
Extends MP joints of the thumb -posterior extensor muscles -deep layer
34
Extensor indicis (Action and Muscle Group)
Extends MP, PIP, DIP of index finger -posterior extensor muscle -deep layer
35
Anterior forearm muscle
-extrinsic and flexor -flexes the wrist, MP and IP
36
Origin of anterior forearm muscles
O: medial epicondyle of humerous
37
Flexor digitorium (Action and Muscle Group)
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
Pronator teres (Action and Muscle Group)
-anterior forearm muscle -superficial
39
Flexor carpi radialis (Action and Muscle Group)
Flexes and abducts at wrist and pinky -anterior forearm muscles -superficial
40
Palmaris longus (Action and Muscle Group)
Flex at wrist joint -anterior forearm muscles -superficial
41
Flexor carpi ulnaris (Action and Muscle Group)
Flexes at wrist joint -anterior forearm muscle -superficial
42
Flexor policies longus (Action and Muscle Group)
Flexes MP and IP joint of the thumb -anterior forearm muscle -deep layer
43
Flexor digitorium profundus (Action and Muscle Group)
Flexes wrist, MP, PIP and DIP of fingers 2 to 5 -deep anterior forearm muscles
44
Proximal carpals
Scaphoid Lunate Triquentrum Pisiform
45
Distal carpals
Trapezium Trapezoid Capitate Hamate
46
How many phalanges are there
14 -each finger has three but thumb only has proximal and distal
47
Deep layer of anterior forearm muscles (two)
-flexor policies longus -flexor digitorium profundus
48
Intermediate layer of anterior muscles (1)
-flexor digitorium
49
Superficial layer of anterior forearm muscles (4)
-pronator teres -flexor carpi radialis -palmaris longus -flexor carpi ulnaris
50
Superficial layer of posterior forearm muscles (5)
-extensor carpi radialis longus -extensor carpi radialis brevis -extensor digitorium -extensor digiti minimi -extensor carpi ulnaris
51
Deep layer of posterior forearm muscles (4)
-abductor policies longus -extensor policies brevis -extensor policies longus -extensor indicis
52
Function of the Thenar group
Forms the thick and fleshy mass at the base of the thumb
53
Muscles of the thenar group (3)
-flexor pollicis brevis -adductor pollicis brevis -opponents pollicis
54
Flexor pollicis brevis (Action and Muscle Group)
Flexes thumb at carpometeacarpal and metacarpohpalangeal joint -thenar group
55
Adductor pollicis brevis (Action and Muscle Group)
Adduct thumb at carpometacarpal joint -thenar group
56
Opponens pollicis (Action and Muscle Group)
Moves thumb across palm to meet any finger -opposition -thenar group
57
Hypothenar group
Forms a smaller fleshy mass at the base of the little finger
58
Muscles of the hypothenar group (3)
-flexor ligitti minimi brevis -abductor digiti minimi -opponens digiti minimi
59
Flexor ligitti minimi brevis (Action and Muscle Group)
Flexes little finger at carpometacarpal and MP joint -hypothenar group
60
Abductor digiti minimi (Action and Muscle Group)
Abduct and flex little finger at MP joints -hypothenar group
61
Opponens digiti minimi (Action and Muscle Group)
Moves the little finger across the palm to meet the thumb -opposition -hypothenar group
62
Midpalmar group
Occupies space between thenar and hypothenar groups
63
Muscles of the midpalmar group
-lumbrical muscles -dorsal interossei muscles -palmar interossei
64
Lumbrical muscles (Action and Muscle Group)
Flex the MP and extend PIP and DIP joints of fingers 2 to 5 -midpalmar group
65
Dorsal interossei muscles
Located between metacarpals -flex MP and extend PIP and DIP of finger 2 to 5 -midpalmar group
66
Palmar interossei (Action and Muscle Group)
Adduct and flex each finger at MP joint, extend IP joints -midpalmar group
67
Origin of anterior forearm muscles
Medial epicondyle of humerous

human anatomy (15 decks)

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