30 Questions
Which hormone is responsible for telling the ovaries to release a mature egg?
LH
What is the target organ for ADH?
Kidneys
Which gland releases epinephrine and norepinephrine?
Adrenal gland
Which part of the pituitary gland releases thyroid stimulating hormone (TSH)?
Anterior pituitary gland
Which cells in the pancreas secrete insulin?
Beta cells
Which type of immunity is called humoral immunity?
Adaptive immunity
Which type of T cell directly attacks infected cells?
Killer T cell
Where are the axillary lymph nodes located?
In the underarm and chest
What is the main function of lymph nodes?
To filter lymph and remove harmful particles
What is the difference between innate and adaptive immunity?
Innate immunity is the immunity one is born with, while adaptive immunity is acquired
Which type of white blood cell is responsible for phagocytosis?
Neutrophils
What is the function of albumin in the blood?
Maintaining osmotic pressure
What is the role of thrombocytes in hemostasis?
Reducing bleeding from injured vessels
Which blood cells are capable of diapedesis?
Lymphocytes and monocytes
What is the function of prothrombin in blood clotting?
Transforming fibrinogen into fibrin
Which layer of blood vessels is composed of endothelial tissue, collagen fibers, elastic fibers, and smooth muscle tissue (except capillaries)?
Tunica intima
Which of the following is responsible for the depolarization of the ventricles in an ECG?
QRS complex
Which blood vessel carries venous blood from the abdominal viscera to the liver for processing before reaching the inferior vena cava?
Hepatic portal vein
What is the purpose of the hepatic portal vein?
To filter the blood from the digestive system
Which type of white blood cell is responsible for antibody-mediated immunity?
B cells
Which of the following is true about the cardiac cycle?
The cardiac cycle consists of five major events: contraction (systole), relaxation (diastole), ejection, filling, and passive ventricular filling.
What happens during isovolumetric ventricular relaxation?
The ventricular pressure drops below arterial pressure and pushes the valve flaps closed.
What is the function of baroreceptors in the autonomic nervous system?
Baroreceptors adjust heart rate by increasing impulses to the vasomotor center.
What are the three main layers that make up the heart wall?
Epicardium, myocardium, endocardium
What is cardiac output?
The amount of blood that flows out of a ventricle of the heart per unit of time
- What is the function of calcitonin?
To decrease blood calcium levels
- Which cells in the thyroid produce calcitonin?
Parafollicular cells
- What is the function of parathyroid hormone?
To increase blood calcium levels
- What are the target tissues of parathyroid hormone?
Bones and kidneys
- What is the role of luteinizing hormone in women?
Stimulate the formation of corpus luteum
Test your knowledge of the cardiac cycle with this quiz! Learn about the five phases involved in this vital process, including atrial and ventricular contraction and relaxation. Measure your understanding of blood flow, pressure changes, and blood volume throughout the cycle.
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