Ch.8 Muscle

Question 1

Muscles 3 primary functions

Answer 1

Provide Motion
Maintain Posture
Generate Heat

Question 2

Bones controlled by conscious mind

Answer 2

Skeletal Muscle

Question 3

Found only in the heart

Answer 3

Cardiac Muscle

Question 4

Carries out unconscious internal movements of the body

Answer 4

Smooth Muscle

Question 5

2 primary protein filaments responsible for contraction within a sarcomere

Answer 5

Thick, dark myosin and Thin, light actin

Question 6

One nerve fiber and all the muscle fibers it innervates

Answer 6

Motor Nerve

Question 7

Hold components of muscle together

Answer 7

Connective Tissue Layers

Question 8

Shortening of all sarcomeres in a muscle fiber

Answer 8

Muscle Contraction

Question 9

When stimulated individual muscle fiber contracts completely or

Answer 9

Not at all

Question 10

single muscle fiber contraction

Answer 10

Twitch Contraction

Question 11

Thin broad superficial muscles found in all domestic species

Answer 11

Cutaneous Muscles

Question 12

Individual smooth muscle cells or small groups of cells

Answer 12

Multiunit Smooth Muscle

Question 13

2 main forms of gross anatomy

Answer 13

Multiunit smooth muscle and Visceral smooth muscle

Question 14

Small and spindle shaped with single nucleus in the center

Answer 14

Microscopic Anatomy

Question 15

Stimulates heart in fight-or-flight response, causes heart to beat faster

Answer 15

Sympathetic System

Question 16

Inhibits cardiac function, causes heart to slow down and beat with less force

Answer 16

Parasympathetic System

Question 17

Located in wall of right atrium, generates impulse to start each heartbeat, “pacemaker”

Answer 17

Sinoatrial (SA) Node

Question 18

Function to increase and decrease size of thoracic cavity

Answer 18

Skeletal Muscles of Respiration

Question 19

External intercostal muscles, Diaphragm

Answer 19

Inspiratory Muscles

Question 20

Internal intercostal muscles, abdominal muscles

Answer 20

Expiratory Muscles

Question 21

Functions mainly for locomotion

Answer 21

Pelvic Limb Skele

Question 22

Muscles of the hip joint:

Answer 22

Gluteal and hamstring muscles

Question 23

Muscles of the stifle joint:

Answer 23

Quadriceps Femoris

Question 24

Muscles of the tarsus and digits

Answer 24

Gastrocnemius Muscle

Question 25

Latissimus Dorsi, Pectoral Muscles

Answer 25

Adductor Muscles

Question 26

Deltoid muscle

Answer 26

Abductor muscle

Question 27

Biceps Brachii and Triceps Brachii

Answer 27

Brachial Muscles, Flexor and Extensor Muscles

Question 28

Extensor carpi radials, Deep digital flexor

Answer 28

Carpal and Digital Muscles, flexor and extensor muscles