Exam #6_Lab: Hand

Question 1

Where does the palmaris longus insert/ what does the palmaris longus give rise to?

Answer 1

Palmar aponeurosis of the hand

Question 2

What is the flexor retinaculum?

Answer 2

Layer of deep fascia that binds down the tendons of the long flexor muscles as they pass over the wrist bones

Question 3

What does the ulnar artery course into the hand with?

Answer 3

Flexor carpi ulnaris tendon

Question 4

What does the superficial plamar branch of the radial artery course into the hand with?

Answer 4

Flexor carpi radialis tendon

Question 5

What are the contents of the carpal tunnel?

Answer 5

1) Tendons of the long digital flexors

2) Median nerve

Question 6

What arch does the ulnar artery form?

Answer 6

Superficial palmar arch

Question 7

What does the superficial palmar arch anastamose with?

Answer 7

Superficial palmar branch of the radial artery

Question 8

What are the branches of the superficial palmar arch?

Answer 8

1) Three common palmar digital arteries
2) Radial indicis a.
3) Proper palmar digital a. to 5th digit

Question 9

What accompanies each common plamar digital artery?

Answer 9

Common plamar digital nerve

Question 10

Describe the innervation of the fingers via the common palmar digital nerves.

Answer 10

Ulnar

• Medial side of 4
• 5

Median
- Digits 1-3 & 1/2 of 4

Question 11

What do the common palmar digital arteries anastamose with?

Answer 11

Metacarpal arteries of the deep palmar arch

Question 12

What artery is the deep palmar arch a branch of?

Answer 12

Radial artery

Question 13

What are the branches of the common palmar digital arteries & nerves called?

Answer 13

Proper palmar digital arteries & nerves

Question 14

How many proper palmar digital arteries & nerves are there per common palmar digital artery & nerve?

Answer 14

2x that supply the medial and lateral side of the corresponding digit

Question 15

What is the artery to the lateral side of the index finger called?

Answer 15

Radial indicis a.

Question 16

Where does the proper palmar artery to the medial side of the 5th digit originate?

Answer 16

Directly off the superficial arch; there is no common palmar digital artery there

Question 17

What is the name of the nerve that supplies the thenar muscles?

Answer 17

Recurrent branch of the median nerve (motor)

Question 18

What muscles arise from the tendon of the flexor digitorum profundus?

Answer 18

Lumbricals

Question 19

What are the three muscles of the thenar eminence?

Answer 19

1) Abductor pollicis brevis
2) Opponens pollicis m.
3) Flexor pollicis brevis

Question 20

What artery passes through the abductor pollicis brevis?

Answer 20

Superficial palmar branch of the radial artery

Question 21

What is the fourth muscle associated with the thumb?

Answer 21

Adductor pollicis m.

• Oblique head
• Transverse head

Question 22

What are the three hypothenar muscles?

Answer 22

1) Abductor digit minimi
2) Flexor digiti minimi brevis
3) Opponens digiti minimi

Question 23

Where does the radial artery enter the palm?

Answer 23

Passing through the two heads of the first dorsal interossei m.

Question 24

What does the radial artery give rise to in the dorsum of the hand?

Answer 24

Deep palmar arch

Question 25

What is the first major branch of the deep palmar arch?

Answer 25

Princeps pollicis a.

Question 26

What artery branches off the princeps pollicis artery?

Answer 26

Radialis indicis a.

Question 27

What are the palmar metacarpal arteries branches of?

Answer 27

Deep palmar arch

Question 28

What do the palmar metacarpal arteries anastamose with?

Answer 28

common palmar digital arteries from the superficial branch

Question 29

How many palmar and dorsal interossei muscles are there?

Answer 29

Palmar= 3
Dorsal= 4

7 Total

Question 30

Where do the tendons of the flexor digitorum superficialis & profundus insert?

Answer 30

Superficialis= middle phalynx

Profundus= distal phalynx

Question 31

What is the name of the structure that covers the dorsum of each digit?

Answer 31

Extensor hood