Cells
Anemia can result from low levels of these cells which contain hemoglobin
What are red blood cells?
Small sacks surrounded by capillaries where gas exchange occurs in the lungs
What are alveoli?
An organ of the central nervous system that controls reflexes
What is the spinal cord?
The artery that carries blood from the left ventricle
What is the aorta?
Two proteins involved in muscle contraction
What are actin and myosin?
Cells that activate B and T cells
What are helper T cells?
A type of muscle tissue that is striated and involuntary
What is cardiac muscle tissue?
The organ in which sperm develop motility
What is the epididymis?
The chamber of the heart that receives oxygen-rich blood from the pulmonary veins
What is the left atrium?
A type of protein that acts as a hormone to regulate blood sugar levels
What is insulin?
A type of cell involved in the peripheral nervous system that sends information from the sensory organs to the central nervous system
What are sensory neurons?
A type of tissue that protects and lines most body surfaces
What is epithelial tissue?
An organ that contains villi surrounded by capillaries where the diffusion of nutrients occurs
What is the small intestine?
The chamber of the heart that pumps oxygen-poor blood through the pulmonary arteries
What is the right ventricle
A type of protein in the stomach that acts as an enzyme to break down proteins
What is pepsin?
Plasma cells are produced by these cells after they have been activated
What are B cells?
A type of connective tissue that joins muscles to bones
What are tendons?
The organ in which fertilization occurs
What are fallopian tubes?
Arteries that supply blood to the heart tissues
What are coronary arteries?
A type of protein present in saliva that acts as an enzyme to break down carbohydrates
What are amylases?
Two phagocytes that participate in the innate immune response
What are neutrophils and macrophages?
A type of body structure that secretes chemicals and is usually comprised of epithelial tissue
What is a gland?
Urine travels through these organs to the bladder
What are ureters?
Blood vessels that bring filtered blood out of the kidneys
What are the renal veins?
A type of protein produced by plasma cells that bind to antigens
What are antibodies?