Test# 5

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An increase in curvature of the lens for focusing on a close object is called

Accommodation

All preganglionic autonomic fibers release_________________ at their synaptic terminals, and the effects are always_____________

Acetylcholine: Excitatory

The neurotransmitter at all synapses and neuroeffector junctions in the parasympathetic division of the ANS is

Acetylocholine

The transmitter that causes excitation in a major portion of the central nervous system is

Acetylocholine

The part of the nervous system that regulates the activities of smooth muscle, cardiac muscle, and glands is the

Autonomic nervous system

The taste buds are located in all but which of the following areas

Bucal Mucosa

Which of the following statements about the cerebrospinal fluid (CSF) is correct?

CSF serves as a shock absorber for CNS

The muscle that alters the shape of the lens for near or far vision is the

Ciliary

The structures specialized for color vision and visual activity are the

Cones

Pupillary muscle groups are controlled by the ANS. Parasympathetic activation causes pupillary ________, and sympathetic activation causes ________.

Constriction, Dilation

The anterior, transparent part of the eyeball is known as the

Cornea

The middle layer of connective tissue that surrounds each peripheral nerve is the

Epineurium

The outermost covering around an entire nerve is termed is

Epineurium

The cranial nerves which supplies the anterior two-thirds of the tongue is the

Facial nerve

The primary visual area of the cerebral cortex is located on the

Occipital lobe

The cranial nerve which innervates the supporting cells of the nasal epithelium and tear glands is the

Olfactory

The only cranial nerves that are attached to the cerebrum are the

Olfactory

The sensory root of a spinal nerve is also termed the

Posterior root

The cerebellum function is to

Produce the subconscious movements required for coordination, maintenance of posture and balance

Neurons in which dendritic and axonal processes are continuous and the cell body lies off to one side are called

Pseudounipolar

Which of the following is not part of the structure of the neuron?

Sarcolemma

The structure which maintain dynamic equilibrium is the

Semicircular canals

Reflexes that result in the contraction of skeletal muscles are termed

Somatic reflexes

The ability to recognize size, shape, and texture of an object is termed

Stereognosis

The division of the autonomic nervous system are

Sympathetic and parasympathetic

A junction between two neurons is called a

Synapse

Constant arteriole blood flow to the brain is maintained by

The arachnoid villi

The sympathetic division of the autonomic nervous system is also called the

Thoracolumbar division

Autonomic pathways always consist of

Two neurons

The autonomous nervous system regulates

Visceral activities

Damage to some types of myelinated avons can often by repaired if which part of the cell remains intact?

cell body

The brain and spinal cord makes up the

central nervous system

The control and integration of visceral activities is a function of the

cerebrum

The receptors for the olfactory sense are located in the

nasal epithelium in the superior portion of the nasal cavity

The spinal cord is protected by the

ribs and sternum

Spinal nerves are called mixed nerves because

they contain sensory and motor fibers


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