BL 2010 Exam 3 Review

A reflex pathway having only one synapse in the CNS is called a

Spinal nerve C8 exits between which two vertebrae:

Which muscle? Origin: Sternum Insertion: Humerus Action: aDducts + medially rotates arm

If someone is injured in the C4-C5 cervical area it would likely lead to:

This extension of the dura mater separates the two hemispheres of the cerebrum.

The nervous system can distinguish between a light touch and a heavier touch because

This type of neuron has one dendrite and one axon emerging from the cell body.

This part of the brain helps to maintain consciousness and to arouse a person from sleep.

Which axons have the largest diameter and propagate nerve impulses most rapidly?

Where in the brain stem does decussation of ascending and descending tracts occur?

Which of the following statements best describes the structure of the blood-brain barrier?

Which lobe of the cerebrum is found deep to the other four lobes and thus cannot be observed from the surface?

Most of the muscles that move the upper leg (thigh) originate on the femur and insert on the pelvic girdle.

IPSP stands for:

The supraspinatus helps to ______ the shoulder, inserts on the _______.

Which type of neuroglia help to form + maintain myelin sheaht in the CNS?

In temporal summation, a single presynaptic neuron stimulates action potentials when it fires fast enough ___

Which electrical signal can allow for rapid long-distance communication within the nervous system?

The crossed exenstore reflex is a _______ reflex art that helps to maintain balance.

The after-hyperpolarizing phase that follows an action potential occurs because __ channels remain open to allow efflux.

Which of the following is NOT one of the descriptive ways to name a muscle?

Which muscle? Nerve: Acessory Origin: Occipital + Thoracic Vertebrae Insertion: Clavicle + Scapula

When a graded potential summates to threshold at the axon hillock,

The attachment of a muscle’s tendon to the stationary bone is called the _____.

Damaging which cranial nerve could decrease gastrointestinal secretions?

Which layer of protective connective tissue covers an entire nerve and fuses with the outer meninges?

Which of the following parts of a reflex arc would be represented by the contraction of the gastrocnemius?

Which fluid-filled cavity is located in each hemisphere of the cerebrum?

If these structures were severed, the nerve impulses from pain and stretch receptors would not reach the CNS.

Brain waves that generally appear during periods of sensory input and mental activity are called

Which of the following skeletal muscle is NOT apart of the anterior compartment of the thigh?

An excitatory neurotransmitter _____ the postsynaptic membrane.

Which skeletal muscle is innervated by the tibial nerve and plantarflexes the ankle.

Which division of the peripheral nervous system only innervates the gastrointestinal tract’s wall?

Which nerve from the brachial plexus is most likely injured if someone has a weak grip + unable to flex their forearm?

This spinal nerve innervates the tibialis anterior and if damaged, would result in a condition called foot drop.

Which type of CNS tissue contains neuronal cell bodies, dendrites, unmyelinated axons?

Which organelle is a site of protein synthesis, specialized to help regenerate damaged axons?

Which fascicle arrangement, under voluntary or involuntary regulation, can control the opening or closing an orifice?

This consists of the thalamus, hypothalamus and epithalamus.

Your friend nods ”yes” to you. This movement at the fulcrum represents a ____.

Which of the following is the most superior part of the brain stem?

The stretch reflex is elcited by streteching of ______.

Frontal lobe damage left an individual unable to physically speak. What area was specifically damaged?

Which structure listed contains cerebrospinal fluid?

Which cranial nerves control movements of the eyeball?

Which muscle is innervated by the radial nerve and extends the elbow?

Cereberal spinal flud aids in protection and homestatic function for the nervous system.

What is another name for a muscle that opposes the action of the prime mover?

Which tract propagates impulses between gyri of same hemisphere?