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Human Body Systems

Study Guide for 7th Grade Final Exam

A flap of tissue that prevents blood from flowing backwards is a(n): Valve
The smallest blood vessels in the body are called: capillaries
Vessels that carry blood away from the heart are: Arteries
Blood vessels that are only one cell thick and allow blood cells to pass through single file are called: capillaries
Blood is: circulating connective tissue
The fluid part of the blood that contains dissolved nutrients, sugars, and proteins is: Plasma
Red blood cells: carry oxygen to the cells.
____ are part of your immune system and fight infections White blood cells
Blood pressure: is a measure of the force of blood pushing against the walls of arteries.
The process by which the body exchanges and uses gases is called: respiration.
The ____ consists of the lungs and passageways that lead to the lungs. respiratory system
Alveoli are sac-like structures: surrounded by capillaries
The failure of any part of the respiratory or circulatory system can result in an inefficient supply of oxygen to organs can occur. cardiovascular disease can occur. heart attack and strokes can result.
Your body’s “transport system” is the: Circulatory System
Veins: bring blood back towards that heart.
Veins always carry oxygen poor blood. False
The act of the ____ pumping forces blood out of the heart muscle. Ventricles
Collecting oxygen-poor blood from the body and pumping it to the lungs is a function of the: Right Side of the Heart
Valves found in veins do the following keep blood from flowing to the heart. False
Without hemoglobin, your cells cannot: receive oxygen
The pancreas releases ____, a hormone that regulate the amount of sugar in your blood Insulin
The group of organs that takes in food, digest food, and eliminate solid wastes make up the: digestive system
Ligaments: are bands of connective tissue
A muscle that bends a part of your body is: a flexor
A strand of tough connective tissue that connects bone to muscle is: Tendon
The major function of the ____ system is to move bones. musculature
________ is found at the end of bones and act as cushion. Cartilage
The interior of long bones are filled with marrow. Marrow produces __________. Red Blood Cells
What Type of cell is shown in Figure 19-1A Neuron
The gap between neuron's is called ________. Synapse
the nerve signal crosses that gap through neurotransmitters
mouth, stomach, appendix large intestine, small intestine, rectum The organs of the digestive tract - in order
Which happens in the MOUTH? amylase breaks carbs into sugars
Food moves through the digestive tract by _______. peristalsis of muscles
small intestine with villi absorb nutrients into the blood stream
Acessory organs of the digestive system Liver, Pancreas and gall bladder
The main fuel used by the body for energy glucose
glucose reacts with oxygen in steps that release energy for the cell to use, and give off water and carbon dioxide as waste products Cellular Respiration
Where does cellular respiration take place? in the mitchondria of cells
What process is occurring when substances move across cell membranes, for example, to go from alveoli to capillary? diffusion
homeostasis regulation of internal environment to keep internal conditions stable
Created by: doakes27