Human Physiology & Body Systems
What is the main purpose of the myelin sheath that surrounds an axon?
To increase the speed of nerve impulse transmission
What is the outermost layer of the human skin called?
Epidermis
Which type of muscle tissue is found only in the heart?
Cardiac muscle
Which gland is often referred to as the 'master gland' because it controls several other hormone glands?
Pituitary gland
What is the functional filtering unit of the kidney?
Nephron
In which part of the respiratory system does the exchange of gases (oxygen and carbon dioxide) take place?
Alveoli
What type of connective tissue attaches muscle to bone?
Tendon
Which organ produces bile, an important substance for fat digestion?
Liver
What is the primary function of red blood cells (erythrocytes)?
Transporting oxygen
Which cells in the immune system are primarily responsible for producing antibodies?
B cells