EXAM 4: Plickers & Think Writes

If you laugh so hard that milk comes out of your nose what did you fail to do? A)Did not close off larynx with epiglottis B)Did not raise your soft palate and uvula C)Did not perform peristalsis in esophagus D)Did not close esophageal sphincter

B) You did not raise your soft palate and uvula

White matter is made up of A)cell bodies B)axons with myelin C)connective tissue covering D)dendrites with myelin

B)Axons with myelin

What type of glial cell provides myelin for the axons in a tract? A)satellite cell B)oligodendrocyte C)schwann cell D)astrocyte

B)Oligodendrocyte

Olfactory receptor neurons are most likely part of the A)Enteric nervous system B)Afferent division C)Efferent Division D)Somatic nervous system

B/D) Afferent division and somatic nervous system

A nerve is A)a cell that conducts action potentials B)a bundle of neuronal cell bodies C)a bundle of axons in the PNS D)a bundle of axons in the CNS

C)A bundle of axons in the PNS

Which parts of the nervous system are in the central nervous system (CNS) and which are in the peripheral nervous system (PNS)?

CNS: brain and spinal cord PNS: sensory and motor neurons outside CNS

Besides direct pressure, why else would blocking CSF circulation lead to brain damage?

CSF is in charge of removing waste. If not drained out, toxins can cause build up and lead to diseases like alzheimer's.

Which type of glial cell is the resident macrophage behind the blood-brain barrier? A)Schwann cell B)Ependymal Cell C)Astrocyte D)Microglia

D)Microglia

Why does diarrhea and constipation lead to death in elderly patients?

Diarrhea causes dehydration. Constipation leads to death because bowl impaction causes toxins to build up in the body.

If the flow of bile was interrupted, how would this affect ability to digest/absorb chyme in small intestine?

If bile was blocked it would not be able to mix with chyme in order to digest fats in the small intestine.

Explain each of these digestive terms: Mechanical Processing Digestion Secretion Absorption Excretion Compaction

Mechanical Processing- to break something apart using physical force (e.g. chewing) Digestion- using enzymes to chemically break something apart Secretion- to release substances (e.g. acids, enzymes, buffers) Absorption- to bring substances into the body Excretion- eliminate wastes from he body Compaction- to dehydrate and form feces

Muscle tissue is found in which layer of the digestive tract?

Mucosa and Muscularis

Which duct enters the duodenum closest to the stomach?

Pancreatic duct

Why are you able to swallow water and food while upside down?

Peristaltic contractions

List the meninges from deepest to superficial

Pia mater, arachnoid mater, dura mater

You feel a touch on your shoulder. You just used:

Primary somatosensory area

How does blood enter a liver lobule?

Through branches of the hepatic portal vein and hepatic artery.

What region of the spinal cord contains motor movement of skeletal muscles?

Ventral horn

If the flow of bile was interrupted (either through a gallstone or blockage), how would this affect the ability to digest or absorb chyme in the small intestine?

You wouldn't be able to digest fats, because bile mixes lipids with chyme to be able to digest fats

If your pancreas stopped functioning, how would it affect your digestive system?

Your stomach acid may damage your intestines and you may not digest your food

When is a person REALLY dead?

lack of all brain function OR loss of all circulatory and respiratory function

The vestibule of the ear is for:

sensing static equilibrium