Neurons & Brain
What is more myelinated: gray or white matter?
White matter
What are the four components of blood?
Red blood cells, white blood cells, platelets, and plasma
What are the two parts that the lymphatic system is divided into?
Primary and secondary
True or false? The pancreas is part of both the digestive and endocrine system.
True
What are the three anatomical planes?
Sagittal, frontal, and transverse
What are the parts of the nervous system?
Central nervous system and peripheral nervous system
What makes up 41% of the blood?
Red blood cells
True or false? There is more blood than lymph fluids in the body.
False
What are TWO common examples of the hormones that the adrenal gland produces?
Adrenaline and cortisol
How many cups of urine can the bladder hold?
2 cups or 500 mL of urine
What is the role of a unipolar neuron?
Sensory neurons that transmit touch, temperature, and pain signals
What is the role of hemoglobin and where is it found?
Hemoglobin is found in red blood cells and carries oxygen
What are the three components of lymphocytes?
B cells, T cells, and NK cells
How and why are the ovaries and testicles part of the endocrine system?
They produce hormones such as estrogen and testosterone
What enzyme does SARS-CoV-2 (COVID 19) bind to and with what?
ACE 2 using spike protein
What nerve impulse conduction is ONLY unique to the central nervous system?
Electric
Where and when does erythropoiesis occur?
Occurs in the bone marrow when oxygen, iron, vitamin B12, and folate levels are low
What pathology is the blockage/removal of lymphatic nodes that causes the body to swell?
Lymphedema
What is the role of the thyroid gland?
Increases metabolism, heart rate, body temperature, and promotes cell growth
What is the special lining of the bladder called and the three layers?
Urothelium: transitional epithelium, detrusor fibrous adventitia
What causes red blood cells to lose efficiency and die eventually?
Environmental factors including UV radiation, pollution, smoking, and chemicals
What does the Epstein Barr virus do and what are common symptoms?
Affects the B lymphocytes that causes swollen lymph nodes in the neck, axilla, as well as the spleen
What is the site where T lymphocytes arise from?
Thymus
1) The deoxygenated blood comes to the heart into the right atrium
2) Deoxygenated blood travels to the lungs
3) Oxygenated blood goes from the lungs to the right atrium
4) Oxygenated blood leaves via left ventricle into the body