Nervous System I
These are the three general functions of the nervous system.
What are collect information, process/evaluate information, and initiate a response?
This cranial nerve is responsible for smell.
What is the olfactory nerve (CN I)?
Olfactory nerve fibers synapse with mitral and tufted cells in these structures.
What are olfactory bulbs?
The external ear is composed of the auricle and this passageway.
What is the external acoustic meatus?
The endocrine system is composed of these types of glands that release products directly into the blood.
What are ductless glands?
This region of a neuron conducts impulses away from the cell body.
What is the axon?
The dorsal root of a spinal nerve carries this type of information.
What is sensory (afferent)?
This nerve ending in the skin detects hair movement.
What is a root hair plexus?
High-frequency sound stimulates hair cells near this area of the basilar membrane.
What is near the oval window (narrow, stiff region)?
The nervous system uses neurotransmitters, while the endocrine system uses these.
What are hormones?
These cells form myelin in the CNS.
What are oligodendrocytes?
This plexus provides innervation to the anterior thigh muscles.
What is the lumbar plexus?
Receptors respond best to one particular stimulus, known as this.
What is modality?
This opening receives the footplate of the stapes.
What is the oval window?
These four small glands on the posterior thyroid regulate calcium levels.
What are the parathyroid glands?
In the CNS, this glial cell can myelinate multiple axons at once.
What is an oligodendrocyte?
The vagus nerve (CN X) is the major source of this branch of the ANS.
What is parasympathetic output?
This receptor type detects changes in osmotic pressure.
What are osmoreceptors?
This gelatinous structure inside the semicircular ducts bends during rotational movement.
What is the cupula?
This general function includes regulating gamete production and sexual behaviors.
What are reproductive activities?
The structure that puts the reflex “into effect” is known as the ____.
What is an effector (muscle or gland)?
Parasympathetic preganglionic neurons typically synapse on these small, close-to-organ ganglia.
What are terminal ganglia?
Taste integrates with texture, temperature, and especially this other sense.
What is olfaction (smell)?
The first neurons in the visual pathway (after photoreceptors) are ____.
What are bipolar cells?
This liver hormone stimulates release of IGFs (insulin-like growth factors).
What is somatomedin?