Organ Systems and Nutrition
This organ system in the body produces hormones from glands that will regulate growth and development.
What is the endocrine system?
This organ is the primary site for nutrient absorption in the body and will complete the stage of chemical digestion.
What is the small intestine?
This organ carries urine out of the body from the bladder
What is the urethra?
The internal charge of a neuron at rest
What is negative?
The folds within the small intestine that increase surface area for nutrient absorption
What are villi?
The set of internal physical and chemical conditions that must be maintained despite environmental changes.
What is homeostasis?
This organ is the main site of water absorption in the body.
What is the large intestine?
This is the main nitrogenous waste that the human kidneys filter out of the blood from protein metabolism.
What is urea?
The fatty, white coating on axons of some neurons that will increase the speed of electrical impulses
What is myelin?
The part of the brain in the brain stem that contains vital reflex centers for heart rate, breathing rate, vomiting, and swallowing.
What is the medulla oblongata?
This organ system includes the skin, nails, hair, and sweat glands.
What is the integumentary system?
This organ functions to cover the nasal passageways during swallowing
What is the uvula?
The millions of individual tiny filters in the kidney that filter the blood.
What are nephrons?
The chemical messengers that travel between neurons
What are neurotransmitters?
The part of the brain that is the switchboard directing sensory inputs to the correct part of the cerebrum for their processing
What is the thalamus?
This mineral is required for bone and tooth formation, blood clotting, and muscle function.
What is calcium (Ca2+)?
This small, immune organ is not a part of the digestive system but is attached to the cecum of the large intestine.
What is the appendix?
The main site of water, salt, and nutrient reabsorption back into the bloodstream from the filtrate in the kidney
What is the loop of Henle?
The part of the brain that interprets visual signals
What is the occipital lobe?
The structure connecting the 2 hemispheres of the cerebrum
What is the corpus callosum?
This fat-soluble vitamin contributes to the growth of skin cells and is important for night vision.
What is Vitamin A?
These cells in the stomach produce hydrochloric acid to denature proteins in food, kill bacteria, and activate the stomach enzymes.
What are parietal cells?
A mass of blood vessels that, under high pressure, will push out most small molecules from the bloodstream
What is the glomerulus?
The direction of flow of ions due to the first channel's opening during an action potential.
What is the inward diffusion of Na+ ions?
The first segment of the small intestine into which the secretions from the liver, gall bladder, and pancreas flow
What is the duodenum?