Test# 5
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