ANIMAL PHYSIOLOGY: Movement and Muscle Control

Question 1

is composed of differentiated cells containing
contractile proteins, which have the special ability to
shorten or contract to move the body parts.

Answer 1

Muscle tissue

Question 2

Characteristics of a Muscle 5 S.E.C.E.E

Answer 2

Specialized cells
Excitability/irritability
Contractility
Extensibility
Elasticity

Question 3

elongated, high density of myofilaments
or cytoplasmic filaments of actin and myosin.

Answer 3

Specialized cells

Question 4

ability to respond to stimuli.

Answer 4

Excitability/irritability

Question 5

ability to contract

Answer 5

Contractility

Question 6

ability of a muscle to be stretched

Answer 6

Extensibility

Question 7

ability to recoil and return to its normal shape
after stretch

Answer 7

Elasticity

Question 8

Muscle Function 5

Answer 8

• Produce Movement
• Maintain Posture and Body Position
• Stabilize Joints
• Generate Heat
• Additional Functions

Question 9

are packaged into organs called BLANK that attach to the skeleton.

Answer 9

Skeletal muscle

Question 10

are spindle-shaped, uninucleate, and surrounded by scant endomysium and are arranged in two layers

Answer 10

Smooth Muscle

Question 11

s striated, uninucleated and under involuntary
control.

Answer 11

cardiac muscle

Question 12

are the structural and functional units of
skeletal muscle

Answer 12

Sarcomeres

Question 13

are the precise arrangement of even smaller
structures within sarcomeres Thick and Thin Myofibrils

Answer 13

Myofilaments

Question 14

interconnecting tubules and sacs that is used for store calcium and to release it on demand when the muscle fiber is stimulated to contract

Answer 14

Sarcoplasmic reticulum

Question 15

contain synaptic vesicles filled with neurotransmitter which stimulates skeletal muscle fibers is

Answer 15

Acetylcholine

Question 16

states that a “muscle fiber will contract
to its fullest extent when it is stimulated adequately;
it never partially contracts.

Answer 16

Muscle Law

Question 17

Types of Muscle
Contraction 2

Answer 17

Isotonic contractions
Isometric contractions

Question 18

• the myofilaments are successful in their sliding movements, the muscle shortens, and movement occurs. Bending the knee, lifting weights, and smiling are all examples of isotonic contractions

Answer 18

Isotonic contractions

Question 19

the myosin filaments are “spinning their wheels,” and the tension in the muscle keeps increasing. They are trying to slide, but the muscle is pitted against some more or less immovable object.

Answer 19

Isometric contractions