Chapter 10 exam 4

Question 1

Fascicles are parallel to the long axis of the muscle

Answer 1

4 types of fascicle organization

Parallel Muscle

Question 2

Fascicles extend over a broad range but converge at a common attachment site

Answer 2

4 types of fascicle organization

Covergent muscle

Question 3

Fascicles form a common angle with the tendon

Answer 3

4 types of fascicle organization

Pennate Muscle

Question 4

Fascicles concentrically arranged around an opening

Answer 4

4 types of fascicle organization

Circular Muscle/ Sphincter

Question 5

fulcrum (F) between the applied force (AF) and load (L) (least common in the body)

Answer 5

First class lever

Question 6

Load between the applied force and fulcrum

Answer 6

Second class lever

Question 7

Applied force between the load and fulcrum (most common in the body)

Answer 7

Third class lever

Question 8

Support and position the head, spinal column, and rib cage

60% of skeletal muscles

Answer 8

Axial Muscles

Question 9

Support, move, and brace the limbs

40% of skeletal muscles

Answer 9

Appendicular Muscles

Question 10

Originate on the surface of the skull
When contraction occurs, the facial skin moves
Important for eating, expression, communication

Answer 10

Facial muscles

Question 11

Position the eye

Answer 11

Extrinsic eye

Question 12

mastication muscle

Answer 12

Lower jaw

Question 13

Control gross motor movements of the limbs

Muscles are large and powerful

Answer 13

Appendicular muscles

Trunk

Question 14

Muscles that move the arms originate on the clavicle, scapula, rib cage, and vertebral column

Answer 14

Appendicular muscles

Arm

Question 15

Muscles of the forearm and hand originate on the scapula, humerus, radius, and ulna

Answer 15

Appendicular Muscles

Forearms

Question 16

originate on the humerus, radius, ulna, and interosseous membrane

Answer 16

Appendicular Muscles

Hands and Fingers

Question 17

intrinsic muscles originate on the carpal and metacarpal bones (and associated tendons and ligaments)

Answer 17

Appendicular muscles

hands

Question 18

Muscles that move the thighs originate on the pelvis and associated ligaments and fasciae

Answer 18

Appendicular muscle

Thigh

Question 19

covers the posterior and lateral surfaces of the pelvis

Answer 19

Thigh:

Gluteal Group

Question 20

Rotate thigh at the hip joint

Answer 20

Thigh:

Lateral Rotators

Question 21

inner thigh; brings leg back towards the body

Answer 21

Adductor Group

Question 22

Attach at the pelvis and lumbar vertebrae

flex at hip joint

Answer 22

Thigh:

Iliopsoas Group

Question 23

Muscles that move the leg originate on the pelvis and femur

Answer 23

Appendicular Muscle

Leg

Question 24

Muscles that move the foot and toes originate on the tibia and fibula

Answer 24

Appendicular Muscle

Foot and Toes

Question 25

originate on the tarsal and metatarsal bones and associated tendons and ligaments

Answer 25

Appendicular Muscle | Intrinsic Foot

Question 26

Fibrous partitions of deep fascia Muscles within a single compartment have roughly similar functions Each compartment has its own blood supply and innervation Important because limb trauma can lead to bleeding within a compartment Elevates pressure, compresses blood vessels and nerves If pressure is not released within 2-4 hours, paralysis and/or muscle death can occur

Answer 26

Limb muscles are organized into COMPARTMENTS