Endocrine System
The hormones T3 and T4 comes from which gland?
The thyroid gland
Which white blood cell type is considered the most numerous in the body?
A. Neutrophils
B. Eosinophils
C. Basophils
D. Monocytes
A. Neutrophils
When leaving the right ventricle, blood goes through which valve?
A. The bicuspid valve
B. The pulmonary valve
C. The tricuspid valve
D. The aortic valve
B. the pulmonary valve
Which node is called the pacemaker of the heart?
A. The SA node
B. The AV node
C. The AV bundle of HIS
D. The Purkinje fibers
A. The SA node
Which layer of the blood vessels contains muscle?
A. Tunica intima
B. Tunica media
C. Tunica externa
B. Tunica media
The hormone oxytocin is responsible for what action?
Stimulates powerful uterine contractions during birth and stimulates milk ejection
Which blood cell is responsible for releasing histamine and mediates inflammation?
A. Lymphocytes
B. Eosinophils
C. Monocytes
D. Basophils
D. Basophils
Once blood leaves the left atrium, it will then pass through which valve?
A. The tricuspid valve
B. The aortic valve
C. The mitral valve
D. The pulmonary valve
C. The mitral valve
Once electricity leaves the AV node, it will then go to which structure of the conduction system?
A. the SA node
B. the Purkinje fibers
C. The AV bundle of HIS
D. The left and right branch bundles
C. The AV bundle of HIS
Once blood leaves the right subclavian artery, it will then enter which artery?
A. The carotid artery
B. The brachial artery
C. The axillary artery
D. The radial artery
C. The axillary artery
Which hormone is responsible for increasing blood calcium by stimulating osteoclasts?
A. Antidiuretic Hormone (ADH)
B. Calcitonin
C. Parathyroid hormone (PTH)
D. Adrenocorticotropic Hormone (ACTH)
C. Parathyroid hormone (PTH)
Which of the following terms means increase in all blood cells?
A. Polycythemia
B. Thrombocytopenia
C. Pancytopenia
D. Erythrocytosis
A. Polycythemia
Which of the following arteries do not branch from the aortic arch?
A. the brachiocephalic trunk
B. the left common carotid artery
C. the right common carotid artery
D. the left subclavian artery
C. the right common carotid artery
The T waves represents?
A. Atrial repolarization
B. Atrial depolarization
C. Ventricular depolarization
D. Ventricular repolarization
D. Ventricular repolarization
The abdominal aorta ends and divides into which arteries next?
A. The renal arteries
B. The common iliac arteries
C. The popliteal arteries
D. The femoral arteries
B. The common iliac arteries
Which hormone stimulates sperm production?
A. Oxytocin
B. Luteinizing hormone (LH)
C. Prolactin
D. Follicle-stimulating hormone (FSH)
D. FSH
Which blood type has neither A or B antibodies?
A. A
B. B
C. AB
D. O
C. AB
Why are the left ventricular walls thicker than the right ventricular walls?
The right ventricle pumps blood to the lungs (a short distance), the left ventricle pumps blood to the entire body (longer distance).
The QRS wave represents?
A. Atrial repolarization
B. Atrial depolarization
C. Ventricular depolarization
D. Ventricular repolarization
C. Ventricular depolarization
Name the variation of blood vessels in order, starting with blood vessels that carry oxygenated blood, to the area for gas exchange, and finally to the blood vessel of deoxygenated blood.
Arteries - arterioles - capillaries - venules - veins
What are the four tropic hormones?
TSH, FSH, LH, and ACTH
Who can O+ donors give their blood too?
A+, B+, AB+, and O+
All of the minor heart veins drains blood from the heart muscles to which blood vessel?
A. The coronary sinus
B. The middle cardiac vein
C. the great cardiac vein
D. the pulmonary veins
A. The coronary sinus
When looking at an ECG sheet, the small squares that are counted horizontally are worth _______ secs and the small squares that are counted vertically are worth ______ mv.
Horizontal - 0.04 secs
Vertically - 0.1 mv
What are the 3 branches from the celiac trunk?
Left gastric artery
Splenic artery
Common hepatic artery