Immune
what is a primary function of this system?
acts as a defense against disease, invading bacteria, and toxins by developing resistance
What are the hormones produced in this system?
estrogen, testosterone, and progesterone (female)
organs that produce hormones that affect growth, development, sexual activities, and overall health of the body
what is another name for this system?
gastrointestinal system
What is the responsibility of red blood cells
carries oxygen to the body cells
the lymphatic system is an aid to what system?
circulatory
we breathe in ____, and breathe out _____
oxygen. carbon dioxide
how many glands are there?
7. Pineal, pituitary, thyroid, parathyroid, pancreas, adrenal, ovaries/testes
what are digestive enzymes?
chemicals that break down food that enters the body.
what is the responsibility of white blood cells?
fights germs
What are at least 3 organs in this system?
liver, lymph, lymph nodes, thymus gland, spleen, and lymph vessels
What is a diaphragm?
a muscle that separates the lungs from the abdominal cavity
what is the most complex gland?
pituitary
what is the order of the digestive system
1. ingestion-eating
2. peristalsis- food travelling to the stomach
3. digestion- enzymes break down food for nutrients
4. absorption- nutrients are absorbed by the body
5. defecation- food exits the body
what do platelets do?
what is plasma?
contribute to the blood clotting process
the fluid portion of blood. is about 90% water
What is interstitial fluid?
a solution that surrounds the cells while also providing nutrients
what are some organs of the excretory system?
skin, lungs, liver, kidneys, and large intestine
what vessel carries blood FROM the head and back to the body
internal and external jugular vein
what is the order of the digestive system
1. ingestion-eating
2. peristalsis- food travelling to the stomach
3. digestion- enzymes break down food for nutrients
4. absorption- nutrients are absorbed by the body
5. defecation- food exits the body
what is the main source of blood supply TO the head?
common carotid artery, which splits into the internal and external carotid arteries