Exam Questions

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Bind to receptors in the nucleus of the target cells

Steroid hormones

Steriod hormones are not-

produced by the suprarenal medulla

When a peptide hormone binds to receptors on the surface of cells-

A second messenger appears in the cytoplasm

LH

The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone

Hormone needed for regular growth

insulin, growth hormone, and thyroid hormone

That target of insulin is the-

Liver

The target of Aldosterone is

Kidney

Aldosterone

a corticosteroid hormone that is secreted by the cortex of the adrenal gland

Corticosteriod

steroid hormone produced by adrenal cortex or synthesized

What happens after a steroid hormone binds to its receptor to form an active complex?

Gene transcription is initiated

Pituitary hormone that controls the release of glucocorticoids from the suprarenal cortex is?

ACTC

Glucocorticoids

One of the major groups of steroid hormones produced by the adrenal cortex. It enables the body to resist long-term stressors, primarily by increasing blood glucose levels.

C cells of the thyroid produce?

Calcitonin

The kidneys secrete?

Renin

Hormone that helps to regulate the sodium ion content of the body is

Aldosterone

Red Blood Cells are formed in the

Bone Marrow

Most of the potein factors that are required for clotting are synthesized by the ?

Liver

Serum is?

Plasma without clotting factors

The enzyme that can digest fibrin and dissolve a clot is?

Plasmin

Plasmin

an enzyme that dissolves the fibrin of blood clots

The function of Hg?

Carry carbon dioxide and carry oxygen

Antigens

chemical compounds to which antibodies bind

If RBCs have Rh proteins (antigens) and no A or B proteins (antigens) this is what blood type?

O+

The conversion of fibrinogen to fibrin is catalyzed by what enzyme?

Thrombin

Catalyzed

brought about or inspired; or sped up

Fibrinogen

Plasma protein that is converted to fibrin in the clotting process

Thrombin

Enzyme that converts fibrinogen to fibrin during coagulation (clotting)

Platelets are pinched off from giant multinucleated cells in the bone marrow called?

Megakaryocytes

Megakarocytes

multinucleate cells which rupture then release thousands of anucleate "pieces" that quickly seal themseleves off from the surrounding fluids

Vitamin K is needed for what?

The formation of clotting factors

The most abundant type of WBC's

Neutrophils

Sickle cell anemia is an example of what can happen if....

A gene for adult hemoglobin is abnormal

What is the plateau phase of cardiac muscle action potential due to?

The calcium channels remain open for longer than sodium channels

An abnormal ECG indicate a problem with the...

Electrical conduction system

The right atrium receives blood from the...

inferior vena cava

Blood flowing into right ventricle first flows through the

Tricuspid valve

Inferior vena cava

Carries blood from lower regions of the body to right atrium

Blood returning to the heat from the pulmonary circuit first enters the

Left Atrium

The pulmonary arteries carry the blood to the

Lungs

The normal pacemaker of the heart is located in the

Sinoatrial Node

Vagal Stimulation works to...

Decrease the heart rate

The second hear sound is heard when the

Semilunar valves close

The volume of blood ejected from each ventricle during a contraction is called...

Stroke Volume

This won't increase cardiac output

Increased parasympathetic stimulation

These will increase cardiac output

Increased venous return, increased sympathetic stimulation, increased heart rate

Depolarization of the ventricles is represented on an electrocardiogram by the

QRS Complex

The heart is roughly the size of a...

Clenched fist

Analysis of the electrocardiogram does not reveal

Stroke volume

An ECG can reveal

duration of the ventricular action potential, condition of the conduction, hear rate

The structure that permits blood flow from the R atrium to the L atrium in the fetal circulation is the

Foramen ovale

Increases heart rate...

Increased sympathetic stimulation of the SA node, increased levels of epinephrine, decreased vagal stimulation

Epinephrine

affect sympathetic nervous system in stress response; Adrenaline

Nonepinephrine

helps control alertness and arousal; undersupply can depress mood

The cardiac muscle recieves oxygen during

Diastole

Erythropoeitin

Stimulates RBC production

Prolactin (PRL)

Stimulates milk production

ACTH

Stimulates the adrenal cortex

Adrenal Cortex

cortex of the adrenal gland that produces three mayor groups of steroid hormones called corticosteroids.

Melatonin

Controls circadian rhythms

Circadian

A rhythm of about 24 hours.

Atrial Natriuetic Hormone

Stimulates sodium excretion

TRH (thryrotropin releasing hormone)

Secreted by the posterior pituitary

Anti-diuretic hormone (ADH)

Secreted by the posterior pituitary

Aldosterone

Decreases sodium excretion

Glucagon

Raises blood glucose

Insulin

Lowers blood glucose

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