unit 5 and 6 multiple choice practice

Shaking of the brain

Concussion

Carry information from CNS to organs

Motor nerves (efferent)

Pinprick to the skin, loud noise, etc.

Receptor

Interprets signal and issues a response

 Intermediate nerve fiber

Brain doesn't have time to interpret information

Withdrawal reflex

Helps maintain muscle tension

Muscles spindles

No movement in any limbs

Quadriplegic]

Connects spinal cord to cerebrum

Brain stem

Triglycerides are broken down to use fat for energy

 Lipolysis

Main product of glycolysis

Pyruvate

Allows us to move

Somatic nervous system

C6H12O + 6O2 + 36 ADP --> 6CO2 + 36 ATP + 6H2O

Aerobic system (cellular respiration)

ADP + P + energy

ATP

Detect increased tension

 Golgi tendon organ

More fatigue resistant

Type I muscle fiber

The main objective of exercise is to

Raise the lactic acid threshold

Digestion is an example of

An autonomic reflex

"During a reflex, the opposing muscle groups are simultaneously stimulated: is the definition of:

Reciprocal inhibition

Which metabolic pathway leads to the complete breakdown of glucose?

Cellular respiration

The by-products of the electron transport chain are:

H2O and CO2

Lipolysis is the process where____________ are broken down to be used for energy:

Triglycerides

Motor (or efferent) nerves:

Carry information from the CNS to the body's organs

Fibers that are dark in colour and able to maintain a lower level of tension for a long duration are known as:

Slow-twitch muscle fibers

The protein that delivers oxygen to working muscles is:

Myoglobin

The system that is responsible for our awareness of the external environment and contains both afferent and efferent nerve fibers is the:

Somatic nervous system

 In terms of polysynaptic reflexes, the more interactions involved...

The more complex and slow the reflex will be

When are proteins broken down to be used as an energy source?

In chronic situations such as starvation

Proprioceptors are found in:

Tendons, muscles, joints

Which of the following is not part of the brain?

Golgi tendon organs

The parasympathetic system

Returns the body to a normal/resting state

Which two structures work together to gather, store, and respond to information?

Brain and spinal cord

The ATP-PC pathway produces lactic acid because:

The ATP-PC system does not produce lactic acid

Which of the following is not a readily available source of energy?

Protein

What acts as a catalyst for chemical reactions but is not affected by the reaction?

Enzymes

Phasic muscles:

Capable of powerful movements, high % type IIA and IIB fibers