A&P 2 Midterm Pt. 2

How many antigen-binding sites for antigens does each IgG antibody possess on its V regions?

2

What makes lymphatic vessels similar to the venous circuit of the cardiovascular system?

Both vessels have valves

Why is heparin used in a capillary tube when performing a hematocrit?

Heparin prevents the cells from coagulating.

Which component of the ECG represents the start of the T deflection to return to isoelectric line?

T wave

How is the base of the heart different from the apex of the heart?

The great vessels are located on the base.

Why are olfactory and gustatory receptors categorized as chemoreceptors?

They detect chemicals dissolved in either saliva or mucus.

Which of the following is TRUE of veins?

Veins have thinner walls than arteries

Madison wants to give a kidney to her older sister. What type of organ transplant will this be?

allograft

Which hormones work synergistically to retain water?

antidiuretic hormone (ADH) and aldosterone

Where are sound vibrations amplified?

auditory ossicles

Which leukocyte becomes a mast cell when it movies into connective tissue?

basophil

How do cardiac cells sustain a membrane potential of around 0 mV during the long plateau phase?

calcium channels remain open

What does the basilar artery branch into next?

cerebral arterial circle

Epinephrine is produced by:

chromaffin cells of adrenal medulla

If there is a drop of blood in the descending abdominal aorta, which vessel would it enter NEXT if it is going to the tibialis anterior muscle?

common iliac artery

What two values are needed to calculate mean arterial pressure (MAP)?

diastolic pressure and systolic pressure

The process of red blood cell production is known as:

erythropoiesis

The anterior and posterior tibial veins merge to form the:

femoral veins

What structure in the fetus allows blood to directly flow from the right atrium to the left atrium?

foramen ovale

Bilirubin comes from the breakdown of:

heme molecules of hemoglobin that lack iron.

What might accompany an overdose of insulin?

hypoglycemia

What type of plasma protein are antibodies?

immune protein

What surface groove separates the right and left ventricles?

interventricular sulcus

Which chamber experiences a maximum pressure of around 118 mm Hg during contraction?

left ventricle

Platelets are cell fragments formed from:

megakaryocytes

Which leukocyte is a granulocyte?

neutrophil

What cells play an extensive role in the eradication of bacteria as phagocytes?

neutrophils

Jerry is an alcoholic and does not eat enough food. He has been diagnosed with a vitamin deficiency. What blood disorder is the most likely a result of this deficiency?

pernicious anemia

The right lymphatic duct receives lymph from the:

right arm

Special senses, such as sight and sound, are detected by:

special cells that transduce stimuli into electrical signals.

What type of hormone is made from cholesterol?

steroid hormone

Which artery supplies the small intestine with blood?

superior mesenteric artery

What does the phrenic artery do?

supplies the superior diaphragm

Where does the conscious awareness of sound begin, along with the analysis of its pitch, location, and loudness?

temporal lobe

As a result of the long refractory period in the contractile cell refractory period, cardiac muscle can NOT exhibit:

tetany

When a photoreceptor cell is stimulated by light:

the photoreceptor hyperpolarizes as sodium ion channels close.

Which blood vessel tunic is innervated by nerves from the sympathetic nervous system?

tunica media

The inability to recognize a family member indicates impairment in the:

ventral pathway