Lecture 6 Anatomy

Question 1

Which nerve only provides sensory innervation in the hand?

Answer 1

Radial Nerve

Question 2

What innervation gives both Motor and Sensory to the hand?

Answer 2

Ulnar and Median Nerves

Question 3

Label the hand with the innervations.

Answer 3

Question 4

Lumbricals 1 & 2

Opponens pollicis

Abductor pollicis brevis

Flexor pollicis brevis

Innervated by what nerve?

Answer 4

Question 5

Adductor Pollicis is innervated by?

Answer 5

Ulnar Nerve

Question 6

Thenar eminence consist of what muscles?

Answer 6

• Thenar
• Opponens Pollicis-Median
• Abductor Pollicis Brevis-Median

*Flexor Pollicis Brevis- Median

Question 7

Hypothenar Eminence? Innervations

Answer 7

• Hypothenar
• Abductor Digiti Minimi-Ulnar
• Flexor Digiti Minimi Brevis-Ulnar
• Opponens Digiti-Ulnar

Question 8

•Lumbricals 1&2- Innervation?

Answer 8

Median nerve

Question 9

Lumbricals 3&4- Innervation?

Answer 9

Ulnar

Question 10

Dorsal Interossei-Innervation?

Answer 10

Ulnar Nerve

Question 11

Palmar Interossei? Innervations?

Answer 11

Palmar Interossei-Ulnar

Question 12

Which of these are not innervated by the median nerve?

A. Opponens Digiti Minimi

B. Abductor Pollicis Brevis

C. Flexor Pollicis Brevis

D. 2nd Lumbrical

Answer 12

A. Opponens Digiti Minimi

Question 13

Superficial Palmar Arch, is majority what artery?

Answer 13

Ulnar Artery

Question 14

Deep Palmar Arch, Majority what artery?

Answer 14

Majority Radial Artery

Question 15

Radial Artery-> what vasculature comes after to get to the fingers?

Answer 15

Dorsal metacarpal arch-> metacarpal arteries-> dorsal digital arteries

Question 16

What can be found in the anatomical snuff box?

Answer 16

Radial Pulse

Question 17

Median Nerve runs through the ?

Answer 17

Transverse carpal ligament

Question 18

Ulnar Artery–> bifurcates into?

Answer 18

Ulnar Artery-> Common Interosseous Artery-> Anterior and Posterior Interosseous Artery.

Question 19

What around the flexor tendons in the tranverse carpal ligament can impact the median nerve?

Answer 19

Bursa

Question 20

Radius is broad at the —– and the ulna is —-

Answer 20

Radius is broad at the wrist. Ulna is narrow.

Question 21

Carpal Tunnel Syndrome. What is it? And how does it happen?

Answer 21

median nerve compression @ the tranverse carpal ligament.

Question 22

What do you have in the Metacarpophalangeal and Interphalangeal Ligaments?

Answer 22

Collaterals and joint capsules

Question 23

Are there any musles in the posterior part of the hand?

Answer 23

NO muscles in the posterior part of the hand.

Question 24

Thenar or Hypothenar? Innervation?

Answer 24

Thenar. Median Nerve.

Question 25

What muscle is this? and what is its innervation? thenar or hypothenar?

Answer 25

Median Nerve. Thenar.

Question 26

Answer 26

Question 27

What muscle is this? Is it hypothenar/thenar? innervation?

Answer 27

Hpothenar. Ulnar Nerve

Question 28

What muscle is this? thenar/hypothenar? Innervation?

Answer 28

hypothenar. ulnar nerve.

Question 29

Oppones are what to the abductor and flexor muscles? Do they reach the phalnages? is this hypo/thenar?

Answer 29

Opponens is deep to the abductor and flexor muscles. Opponens do NOT reach the phalanges. hypothenar. ulnar nerve

Question 30

How many Lumbricals? Lumbrical start from which phalanges?

Answer 30

4 lumbricals. They start from the 2nd to the 5th phalange.They all attach to the radial side of the fingers and the attach to the tendons of the flexor digitorum profundus

Question 31

Answer 31

Question 32

Answer 32

Question 33

What muscles? Innervations?

Answer 33

Ulnar Nerve.

Question 34

What muscle? hypothnar/thenar? innervation?

Answer 34

thenar. Median nerve.

Question 35

PADS. Stands for? which digit doesnt adduct?

Answer 35

Palmar Interossi ADDuction. The third digit does NOT adduct.

Question 36

DABS? stands for?

Answer 36

dorsal interossi ABduction. 3rd digit abducts in BOTH directions.

Question 37

Answer 37

Question 38

Answer 38

Question 39

Palmar Aponeurosis?

Answer 39

Palmaris Longus attaches here. Some ppl dont have palmaris longus but have palmar aponeurosis.

Question 40

Answer 40