Unit 2B - Homeostasis and Human Body Systems

Components of Blood plasma

Hormones, Glucose, Waste, Water

Formed Elements in the blood

Red Blood cells, White blood cells, Platelets

Right ventricle

Blood flows from pulmonary artery to…?

Left side

Pulmonary artery leads blood to what side of the heart?

Oxygen and Glucose

Substances that enter body tissues from the systemic capillaries

CO2 and Waste/urea

Substances that leave the boyf tissues and diffuse into the systemic capillaries

Vein

carries deoxygenated blood

Vein

moves blood towards the heart

Vein

Contains one way valves

Artery

carries oxygenated blood

Artery

moves blood away from the heart

Artery

Thick, elastic, muscular (ex. Aorta)

Capillaries

Permeable to nutrients from the blood

Hormones

Chemical messengers, secreted by glands, that travel through the bloodstream

neurotransmitters

Chemicals released by nerve cells to stimulate and effector

Rectum

The digestive organ that stores/eliminates digestive westes

Emulsification

Process by which bile breaks large lipid droplets into smaller lipid droplets

Accessory organs

Name for the group of digestive organs that food does not move through, bt aid in digestion

Pancreas

The gland that produces a mixture of digestive agents required to complete chemical digestion in the small intestine

Duodenum

Name of the first, short segment of the small intestine where most chemical digestion is completed

Gallbladder

The name of the organ that stores bile

Neuron

The name for an individual nerve cell

Epiglottis

The valve/muscle that closes during swallowing to prevent food from entering the trachea

Hemoglobin

The molecule found in RBC that binds to oxygen as it enters the bloodstream

Positive Feedback

The name for the type of regulatory mechanism that amplifies or intensifies the original stimulus

Amino acids

Proteins turn into

Fatty acids, Glycerol

Lipids (fats/oils) turn into

Monosaccharides (simple sugars)

Carbohydrates turn into

Nucleotides

Nucleic Acids turn into