Study for test so you don't fail: Chapter 12-14 A&P

What cranial nerve controls smell?

I. Olfactory nerve

What cranial nerve controls vision?

II. Optic nerve

What Cranial nerve controls eye movement of the pupil?

III. Oculomotor nerve

What Cranial nerve controls eye movement up and down?

IV. Trochlear nerve

What Cranial nerve deals with facial sensation?

V. Trigeminal Nerve

What Cranial nerve controls lateral eye movement?

VI. Abducens nerve

What Cranial nerve controls facial expressions?

VII. Facial nerve

What Cranial nerve deals with hearing & balance?

VIII. Vestibulocochlear nerve?

What Cranial nerve deals with taste and swallowing?

IX. Glossopharyngeal nerve

What Cranial nerve regulates organs in the abdomin, and deals with things like digestion?

X. Vagus nerve

What Cranial nerve controls shoulder shrugging and head turning?

XI. Accessory nerve

What Cranial nerve controls tongue movement?

XII. Hypoglossal

What brain region contains all of the lobes, like parietal, frontal, temporal, and occipital?

Cerebrum

What is the region of the brain located under the cerebrum, with a “arbor vitae” appearance?

Cerebellum

What region of the brain contains the hypothalamus, epithalimus, and thalimus

The Diencephalon

What is the order of the parts of the brainstem, from most superior to most inferior

Midbrain, Pons, Medula ablongada

What brings sensory input to the spinal cord?

The Dorsal Root

What sends sensory input out of the spinal cord?

The Ventral Root

Arrange the steps of the Reflex arc in the correct order:

a. Action potentials travel down the sensory to the CNS

b. Action potential travel down the motor neurons to the effector organ

c. Sensory receptors respond to the stimuli and produce action potentials in sensory neurons

d. Interneurons in the CNS synapse with sensory and motor neurons

e. Effector organ responds to the action potential

c. a. d. b. e.

What controls breathing, heart rate, and blood vessel diameter?

Mudella

What is nuclei that flows through the brain?

Recticular formation

What region of the brain controls balance?

The Cerebellum

What part of the brain deals with voluntary motor function, aggression, sense of smell, mood, personality, and decision making?

Frontal lobe

What part of the brain receives all sensory information apart from smell, hearing, and vision?

Parietal lobe

What part of the brain processes visual input?

Occipital lobe

What part of the brain deals with smell, memory, hearing, and abstract thought?

Temporal lobe

What is the fluid cushion that surrounds the brain

Cerebrospinal fluid

What are the two categories of General senses?

Somatic & Visceral

Are these Somatic, Visceral, or Special senses?

Touch, Pressure, Proprioception, Temperature, & Pain

Somatic

Are these Somatic, Visceral, or Special senses?

Pain & pressure

Visceral

Are these Somatic, Visceral, or Special senses?

Smell, Taste, Vision, Hearing, & Eqauilibrium

Special

What Sensory receptors deal with compression, bending, and stretching of cells; touch pressure, proprioception, hearing, & balance?

Mechanoreceptors

What Sensory receptors deal with chemicals, like sugar? (like in smell & taste)

Chemoreceptors

What Sensory receptors deal with temperature?

Thermoreceptors

What Sensory receptors deal with vision and perceiving light?

Photoreceptors

What Sensory receptors detect extreme pain?

Nocireceptors

What Sensory receptors deal with associated with the skin?

Cutaneous receptors

What Sensory receptors deal with internal organs?

Visceroreceptors

What Sensory receptors are associated with joints, & tendons; detects stretch, position of body parts weight of held objects.

Proprioreceptors

What is it called if you don’t smell something even when the smelly object is still there?

Receptor Desensitation

What is the order of receptor desensitation?

a. Ligand binds receptor; receptor activates, sensory neuron fires an action potential

b. Ligand (smeller, oderant) approaches receptor

c. Receptor is internalized (no more smell)

b. a. c.

What’s the first step in receptor Desnsitation?

Ligand (smeller, oderant) approaches receptor

What’s the second step in receptor Desnsitation?

Ligand binds receptor; receptor activates, sensory neuron fires an action potential

What’s the third step in receptor Desnsitation?

Receptor is internalized (no more smell)

What sensory pathway goes from the periphery to posterior horn of spinal cord?

Primary

What sensory pathway cross opposite side and ascend to thalamus?

Secondary

What sensory pathway is from the thalamus to somatic sensory cortex central gyrus of parietal lobe; send signals through the brain.

Tertiary