Which type of descending motor pathway conveys nerve impulse that originate in the
cerebral cortex and allows you to use your fingers for sewing and sign language -
ANSWER corticospinal tract
A group of cells that work together to perform a particular function is a(n) - ANSWER
tissue
A component that detects decreasing oxygen concentrations in blood would be the -
ANSWER receptor
which cavity contains the heart - ANSWER pericardial cavity
cutting open the chest at the sternal marking would represent a(n) - ANSWER
midsagital plane
cutting the body in half at the diaphragm, would create the thoracic cavity and the
abdominopelvic cavity. what plane would create these halves - ANSWER
transverse
when holding your arms out to the side at shoulder level, your fingers are _____ from
your midline - ANSWER lateral
the heart is _____ to the liver - ANSWER superior
which subspecialty of physiology deals with the effects of hormones that control
reproduction - ANSWER endocrinology
blood is often drawn from the front of the elbow at the _____ marking - ANSWER
antecubital
The pericardial cavity is located inside the _____ - ANSWER mediastinum
which tissue forms the top layer of the skin - ANSWER epithelial tissue
which structure or region could one clearly see when you are viewing the anterior
side of an individual in the standard anatomical position - ANSWER palm of the
hand
the three types of subatomic particles that are important for understanding chemical
reactions in the body are - ANSWER protons, neutrons, electrons
what region of an atom contains protons and neutrons - ANSWER nucleus
____ refers to a weighted average of the atomic weights of naturally occuring
isotopes of an element - ANSWER atomic mass
, a chemical that can conduct electrical current when dissolved in water is a(n) -
ANSWER electrolyte
which relatively weak type of bond helps stabilize the three dimensional structure of
large molecules like proteins and DNA - ANSWER hydrogen
which type of chemical reaction will absorb more energy than it releases - ANSWER
endogernic
An enzyme acts to _____ - ANSWER Lower the activation energy needed to start
the reaction
A solute that readily dissolved in water is _______ - ANSWER hydrophilic
A solution with a PH value less than 7 is _______ - ANSWER acidic
a chemical compound that helps control the PH of a solution by adding or removing
hydrogen ions is a(n) - ANSWER buffer
This type of lipid is the body's primary long term energy storage molecule - ANSWER
triglyceride
plasma membranes are _____, which means that some chemicals move easily
through plasma membrane while other chemicals do not - ANSWER selectively
permeable
which of the following is the transport process by which gases like O2 and CO2,
move through a membrane - ANSWER simple diffusion
if the solute concentration is greater inside of the cell than outside of the cell, water
will move by osmosis ________ - ANSWER into the cell
which of the following transport processes uses vesicles formed in the plasma
membrane to take up extracellular substances and import them into the cell -
ANSWER endocytosis
microfilaments, intermediate filaments, and microtubules are all components of a
cell's _______ - ANSWER cytoskeleton
which membrane-enclosed organelle is the site of synthesis of membrane proteins
and secretory proteins - ANSWER rough ER
which membrane enclosed organelle modifies, sorts, and packages proteins
destined for other regions of the cell - ANSWER Golgi complex
which membrane enclosed organelle can engulf a worn out organelle, digest its
chemical components, and recycle those digested components - ANSWER
lysosomes
The major function of mitochondria is to ______ - ANSWER generate ATP