The Muscular System

Question 1

Muscles compose how much of the horses total body weight

Answer 1

50%

Question 2

What are the 3 types of muscles?

Answer 2

1. Smooth or in voluntary
2. Cardiac or involuntary striated
3. Striated or skeletal

Question 3

Smooth muscle aka

Answer 3

Visceral muscle

Question 4

Smooth does what and is found where

Answer 4

It is found in the digestive system and in the uterus smooth muscles are capable of long periods of activity be fore getting fatigued they perform wave like motions or peristalis

Question 5

Cardiac muscle…

Answer 5

Found only in the heart it is controlled by the autonomic nervous system

Question 6

Skeletal muscle…..:

Answer 6

Is attached to the bony levers of the skeleton they move the body voluntarily and under the direct control of the will

Question 7

Muscle contraction requires energy in the form of ?

Answer 7

Adenosine triphosphate (ATP)

Question 8

What are the 3 basic fuel systems that provide material to produce ATP for muscle contraction?

Answer 8

1. Phosphagen system
2. Glycogen or lactate system
3. Citric acid or Krebs cycle

Question 9

The phosphagen system

Answer 9

Supports anaerobic work for 30 seconds

Any event done at maximum effort and lasting less than 30 seconds is supported almost entirely by this system

Question 10

The glycogen or lactate system can produce energy for up to…

Answer 10

5 minutes
It take over ATP production when the phosphagen system is depleted
The process does not require oxygen

Question 11

The citric acid or Krebs cycle requires…

Answer 11

Oxygen and produces the largest amount of ATP

Question 12

How long can the Krebs cycle last

Answer 12

Hours assuming the oxygen can be promptly and efficiently delivered to the muscle