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Human Body Systems
Study Guide for 7th Grade Final Exam
| Question | Answer |
|---|---|
| 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
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