Exam 3 Practice Test

during this process, influx of __ causes vesicles in the axon bulb to fuse with the cell membrane, relasing__

CA2+, neurotransmitter

Excretory organs include...

Lungs, liver, skin, and kidney

an increase in the amount of carbon dioxide in the bloodstream will cause...

a decrease in the pH of the blood cerebrospinal fluid

Hormone is responsible for sodium reabsorption by collecting ducts

aldosterone

This Hormone is responsible for increasing water retention when the body is deyhrydrated

antidiuretic hormone (ADH)

most of the carbon dioxide released by cells is transported in the venous supply in what form

as free carbon dioxide gas

The amount or volume of water primarily affects which vital sign

blood pressure

The appendix dangles off the __ and has no real function in humans

cecum

The most highly developed part of the brain; the corpus callosum interconnects its two sides; associated with language ad conscious though

cerebrum

what event associated with the transmission of an impulse across a synapse occurs last

chemically gated channels for sodium open

The watery mixture of partially digested fod produced in the stoach is called

chyme

Hormone that resoibsible for increasing the production of red blood cells

erthropoeitin

relies on peristalsis to move food to the stomach

esophagus

Is responsible higher order, reasoning, the inition of motor output, and speech formation

frontal lobe

Releases bile into the duodenum

gall bladder

Bile is produced by the __ and stored in the__

liver and gall bladder

Mechanical and chemical digestion begins here

mouth

These cells within the central nervous system provide protection and physical support to neurons but do not conduct nerve impulses

neuroglia cells

received and interprets visual impulses

occipital lobe

Explain why humans must constantly breathe in oxygen in order to stay alive

oxygen is the final electron acceptor in the process of cellular respiration, which results in the production of the ATPs required to energize cell function

The process by which food is propelled though the digestive tract by alternating contraction and relaxation of smooth muscle is called

peristalsis

the order of entries

pharynx, larynx, trachea, bronchiole, and alveoli

during inspiration, intercostal muscles function to...

pull the rib cage up and out, so that lungs volume increases

Term of the process of actively transporting a nutrient molecule(such as sugar) out of the proximal tubule for the purpose of re-uptake into the bloodstream

reabsorption

during a cough, what is responsible for constricting the size of the trachea

smooth muscle contractions in the trachea

excitatory neurotransmitters encourage the generation new electrical impulses by...

stimulating depolarization of postsynaptic neurons

Nutrient rich blood moves from the small intestine to the liver via

the hepatic portal system

Why should we breathe through our noses rather than mouth

through the nose the air is warmed, humidified, and filtered

What results from the metabolism of proteins

urea

What vitamin is activated into the functional form by the kidney

vitamin D

Fluid flow from the glomerulus through the nephron

-renal corpuscle -proximal tubule -loop of henle -distal tubule -collecting corpuscle