Chapter 11 (The Muscular System IX)

Question 1

Extrinsic muscles of the hand

Answer 1

They originate outside the hand and insert within it

Question 2

Based on location and function, these muscles are divided into …

Answer 2

An anterior and a posterior compartment group

Question 3

Retinacula

Answer 3

Strong fascial bands which hold the tendons of the extrinsic muscles of the hand close to the bones

Question 4

Superficial Flexor Compartment

Answer 4

Flexor Carpi Radialis
Palmaris Longus
Flexor Carpi Ulnaris
Flexor Digitorum Superficialis

Question 5

Deep Flexor Compartment

Answer 5

Flexor Pollicis Longus

Flexor Digitorum Profundus

Question 6

Superficial Extensor Compartment

Answer 6

Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Digitorum
Extensor Digiti Minimi
Extensor Carpi Ulnaris

Question 7

Deep Extensor Compartment

Answer 7

Abductor Pollicis Longus
Extensor Pollicis Brevis
Extensor Pollicis Longus
Extensor Indicis

Question 8

Intrinsic Muscles of the Hand

Answer 8

Thenar
Hypothenar
Midpalmar

Question 9

Thenar Muscles of the Hand

Answer 9

Abductor Pollicis Brevis
Opponens Pollicis
Flexor Pollicis Brevis
Adductor Pollicis

Question 10

Hypothenar Muscles of the Hand

Answer 10

Abductor Digiti Minimi
Flexor Digiti Minimi Brevis
Opponens Digiti Minimi

Question 11

Midpalmar Muscles of the Hand

Answer 11

Lumbricals
Palmar Interossei
Dorsal Interossei