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BJHS Unit 2 Review

Homeostasis, Human Body Systems

QuestionAnswer
Cells Basic unit of Life
Tissue Groups of cells working together to perform a specific job
Organs Several types of tissues working together to perform a job
Organ Systems Groups of body parts working together to perform a major life-function
Organism A living thing
Homestasis Balance - maintaining a constant, stable internal body state in a constantly changing environment
Internal Stimuli Come from inside the body such as hunger or thirst
External Stimuli Come from outside the body such as temperature or threats
Fever the bodies response to an infection.
Why does the body get a fever? Higher internal temps slow the growth of bacteria
What causes vomiting in humans? infection, too much water, dizziness, etc.
What is a force? A push or a pull
What is peristalsis? The muscle contractions that push food through the digestive system
How does peristalsis work in digestion? Swallowing pushes food down the esophagus. Colon pushes food out of the body.
How does peristalsis work in circulation? Blood is pushed away from the heart through blood vessels.
What is an example of a physical change in digestion? Chewing, stomach muscles squeezing food
What is a physical change? Mechanically breaking down food into smaller pieces
What is a chemical change? Breaking down of food using a chemical substance.
What is an example of a chemical change in digestion? Dissolving food with saliva; digestive acids breaking down food.
What body system is like the Cell wall? Integumentary system - both protect the outside of the organism
What body system is like the Nucleus? Nervous system - both act as control center
What body system is like the Mitochondria? Digestive system - both convert food into energy
What body system is like the Endoplasmic Reticulum (ER) Circulatory System - both move material around the organism like roads
What body system is like the lysosomes? Excretory system - both remove waste
What is the structure of the Circulatory System? Heart, veins, Arteries, blood
What is the function of the Circulatory system? Delivers blood to the body
What is the function of the Endocrine system? Hormones are released by glands to control body functions.
What is the structure of the Endocrine system? Glands and Hormones
What is the function of the Integumentary system? Protects the inside of the body, produces Vitamin D
What is the structure of the Integumentary system? Skin, hair, nails and sweat glands
What is the function of the Excretory system? Produce, store and eliminate liquid waste from the body
What is the structure of the Excretory system? Kidney, Bladder, Urethra
What is the function of the Respiratory system? Takes in oxygen and releases carbon dioxide.
What is the structure of the Respiratory system? Lungs, Alveoli, Trachea, and Diaphragm
What is the function of the Digestive system? Breaks down food into small pieces to be used by our cells to make energy
What is the structure of the Digestive system? Mouth, Espophagus, Stomach, Small Intestines, Large Intestines, Anus
What is the function of the Nervous system? Control center, responsible for the 5 sense and communication
What is the structure of the Nervous system? Brain, Nerves, Eyes
What is the function of the Reproductive system? Pass genetic information to the next generation
What is the structure of the Reproductive system in males? Penis, Testes
What is the structure of the Reproductive system in females? Ovaries, Uterus, Vagina
What is the function of the Muscular system? Allows the body to move
What is the structure of the Muscular system? Muscles and tendons
What is the function of the Skeletal system? Protects internal organs and gives the body structure and shape
What is the structure of the Skeletal system? Bones, Cartilage, Ligaments
Created by: pintol
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