bio exam 3 quiz questions – Flashcards

The specialized membranes that surround the spinal cord

The ____________ reflex complements the flexor reflex by activating contralateral muscles

In Action potentials in ventral nerve roots propagate _________________ the cord

The anterior horns of the spinal cord contain mainly

The layer of the meninges in direct contact with the spinal cord is the

What is the correct order of meninges from deep to superficial?

The gray horns of the spinal cord contain mainly neuronal ___________

The ventral root of a spinal nerve contains axons of __________ neurons

The cell bodies of motor neurons to skeletal muscles are located in the __________ gray horns

The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the __________

If the dorsal root of a spinal nerve is severed, ___________ input would be blocked

Cerebrospinal fluid (CSF) flows within the _______________

The layer of connective tissue that surrounds individual axons within a peripheral nerve

Sequence of structures in a reflex arc

Action potentials in spinal nerves propagate __________ the cord

Action potentials in dorsal nerve roots propagate ___________ the cord

The spinal cord consists of 5 regions and ____ nerve roots

In the spinal cord, white matter is separated into ascending and descending tracts organized as

The dorsal root ganglia mainly contain cell bodies of ________ neurons

Compared to the vertebral column, the spinal cord is

The outermost connective-tissue covering of nerves is the

A dorsal and ventral root of each spinal segment unite to form a

The dorsal root of a spinal nerve contains axons of ____________

The anterior horns of the spinal cord contain mainly

The reflex that causes relaxation and prevents a muscle from exerting too much tension is the

The activation of Golgi tendon organs will cause a muscle to

The white matter of the spinal cord is mainly ______________ axons

Neurons that carry touch, vibration and non-painful stimuli synapse on interneurons in the cord and reduce the signals from nociceptors that reach the brain resulting in a decrease in pain

Decrease in sensitivity to a continued stimulus

Which type of pain is sometimes called "prickling, cutting pain"?

The primary motor cortex is contained in the ___________ gyrus

The visual cortex is located in the ____________ lobe

The ___________ filters and relays sensory information to the cerebral cortex.

The auditory cortex is located in the ___________ lobe

This type of receptor is normally inactive but becomes active in short bursts in response to a change in stimulus

The larger the receptive field the __________ your ability to localize a stimulus

All sensory input that reaches the cerebrum, except for the sense of smell, synapses in the ___________

Male brains are typically ____________ when compared to female brains

The respiratory rhythmicity center is located in the __________ ___________

The surface of the postcentral gyrus contains the _________ __________ cortex

The cerebral area posterior to the central sulcus is the ___________ lobe

The primary sensory cortex is located on the ___________ ________

Functional areas that control speech are typically located in the ________ hemisphere

The superior border of the temporal lobe is marked by the _________ sulcus

The cerebrum consists of two large hemispheres whose surfaces are distinguished by thick folds called _________ that are separated by grooves called __________

Stimulation of the reticular activating system results in ____________ attentiveness or consciousness

Pain is to ____________ as cold is to _____________

Sensory information is processed and relayed to the cerebrum by the ____________

Mechanoreceptors that respond to changes in blood pressure are called ____________

The cardiovascular reflexes are based in the ___________ ___________

Receptors that monitor the position of joints belong to the category called ____________

This type of pain is sharp and well localized, and carried by large diameter myelinated axons

Overseeing the postural muscles of the body and making rapid adjustments to maintain balance and equilibrium are functions of the

Autonomic centers that control blood pressure, and heart rate are located in the

The adult human brain contains almost ___ percent of the body's neural tissue

Functional areas that control speech are typically located in the ______ hemisphere

Dual innervation refers to an organ receiving both ___________ and ____________ innervation

What effect is associated with the action of postganglionic sympathetic fibers, on the pupils?

The statement "Preganglionic axon terminals release acetylcholine." Is true for ___________

The statement "Its postganglionic axons always use acetylcholine as the neurotransmitter" is true only for the _______________ NS

The adrenal medullae secrete __________ & ___________

Which postganglionic neurons do not release acetylcholine?

Parasympathetic stimulation __________ gastric motility

Specialized ganglionic sympathetic neurons that release hormones into the bloodstream are found within the

Which neurotransmitter is released at the sympathetic chain ganglia?

Autonomic motor neurons conduct impulses to _________ muscle, _________ muscle, & __________

Nerve fibers that are considered adrengenic secrete __________ as the neurotransmitter

The statement "its ganglia are usually near or within the end organ" is true for the __________ nervous system

In general, parasympathetic preganglionic fibers are ______ and postganglionic fibers are _______

A sudden increase in blood pressure detected by ________ in the walls of large arteries near the heart will cause a parasympathetic _____________ in HR.

Which structures receive stimulation from only the sympathetic division of the ANS?

The sympathetic division of the ANS is also known as the ________ division

Where might we find alpha and beta receptors?

The parasympathetic division of the ANS is also known as the _______ division

What effect is associated with the action of postganglionic sympathetic fibers, on heart rate?

Ganglionic neurons usually synapse with preganglionic neurons in the automatic _________ and have axons that innervate ________ effectors

A visceral motor neuron whose cell body is within the CNS is called a ___________ neuron

Almost 75% of all parasympathetic outflow travels along the _______ nerve

Adrenergic receptors on effectors are called ___________ or __________ receptors.

Nerve fibers that are considered adrenergic secrete ______________ as the neurotransmitter

What type of neuron of the parasympathetic division exits the brain stem?