Anatomy 2

Cerebral spinal fluid is absorbed back into the blood via the

Which cranial nerve controls muscles used for speaking and swallowing and transmits sensory impulses from chemoreceptors that respond to changes of carbon dioxide levels in the blood.

The area of skin innervated by a single spinal nerve is called a

Which of the following is NOT a component of the neuromuscular junction?

Which of the following cranial nerves has both sensory and motor function?

The gray rami communicantes contain

The chief contributor to the negative charge of a resting neurons’ intracellular fluid is

All of the following E’s are used to describe the sympathetic division of the ANS except

The _?_ of the brain is the location of our conscious mind.

Which of the following is a descending pathway?

Norepinephrine is secreted by

Opening chloride channels in a postsynaptic membrane will usually result in a

Depolarization of the neuron refers to

In addition to its vital role in maintaining overall homeostasis which brain region synthesizes two major body hormones?

Which generalization concerning movement by skeletal muscles is not true?

Neurons that transmit impulses from the spinal cord to the thalamus are called

The dorsal roots along the spinal cord contain _?_ fibers while the dorsal rami contain _?_ fibers.

The term 'motor unit' applies to

Which area of the brain helps plan voluntary movements?

About 90% of the parasympathetic fibers are located in which cranial nerve?

Which of the following is the main component responsible for the blood brain barrier?

The point at which the all or none principle of action potential generation is reached is referred to as the

The innermost meninx that protects the brain and spinal cord is the

The region of the brain that allows us to understand written and spoken language is

Energy released from the splitting of ATP is utilized in which of the following processes?
1)detachment of the myosin heads from the actin filaments
2)formation of creatine and phosphate from the creatine phosphate
3)movement of calcium from the sarcoplasm into the sarcoplasmic reticulum
4)synthesis of adenosine diphosphate (ADP)

Which of the following occurs first in the contraction of a muscle fiber?

The channels that run from the surface of the sarcolemma deep into the interior of the skeletal muscle cells are called

Body temperature regulation is under the control of the _?_.

Much of the white matter in the cerebral hemispheres functions

Muscle fibers that are under involuntary control, lack cross striations and have one nucleus at the center of the cell are known as

Predict the outcome of damage to one cord of the left brachial plexus

Ganglia associated with efferent nerve fibers mostly contain cell bodies of _?_.

For conscious muscle movements activity of the _?_ is required.

In a living neuron which component provides the resistance to the flow of charged particles (ions)?

Muscarinic receptors differ from nicotinic receptors in that _?_.

The thin actin filaments of a striated muscle fiber are anchored to

The radial nerve is formed from the _?_ plexus.

This brain system is important when you study because it can filter out distractions.

An intensely painful stimulus is distinguished from a mildly painful one by _?_.

Neurons generally repolarize once the membrane potential reaches +30 mv because _?_.

Which of the following is NOT a benefit of aerobic or endurance exercise

During the events involved in information transfer across a chemical synapse, which of the following steps would be directly interrupted by exposing a neuron to a calcium channel blocker.

The perineurium

what is the functional role of the T tubules?

The maintenance of the resting membrane potential is possibly due to

Which of the following is true about the parasympathetic nervous system?

Certain psychotic drugs exert their effects by keeping the concentration of neurotransmitters elevated within the synapse. These drugs act by

At which level of the somatosensory system are conscious decisions made about low grade or painless touch stimuli?

Standing on your toes as in ballet requires______ of the foot.

Which receptors are stimulated by epinephrine?