VOCAB
Define: Brain
the part of the body that interprets all of the information the senses recieve
Define: Integumentary System
a group of organs that protect the body with a tough physical barrier
Define: Organ System
a group of closely interacting organs that carry out a specific function
Which of the following parts of the human body is the most complex?
The nervous system
Jonah stubbed his toe on the door. It took about half of a second for him to feel pain in his toe. What organ system was involved in Jonah’s pain after stubbing his toe? Explain why you chose this system
The nervous system because it is the system that sends signals from one place to another
Define: Circulatory System
a group of organs that distribute blood, oxygen, and nutrients to the body’s cells and carry away waste products
Define: Memory
the process of retaining information over time
Define: Respiratory System
a group of organs that enable an organism to collect oxygen and dispose of carbon dioxide
Peter went to the doctor because he noticed an unusual growth on his arm. The doctor recommended taking a biopsy of the growth. A biopsy is a medical procedure where a small sample of tissue is removed from a part of the body. The doctor then looks at the tissue sample under the microscope. What structures make up the tissue that are too small to be seen without the microscope?
Cells
Maria is cooking onions on the stove. Before long, the entire room smells like onions. When Maria’s sister Ana walks into the kitchen, she immediately knows that Maria is cooking onions. How did Ana’s nervous system allow her to know that Maria was cooking onions?
Sensory receptors in her nose detect the onion molecules in the air, which communicate with the brain.
a group of organs that break down food into energy that can be used by cells in the body
Define: Muscular System
a group of organs that enable an organism to move
Define: Sense
how animals get information about the outside world
Nikki went for a bike ride over the weekend. She hit a rock and fell, scraping her knee. Which body system was most affected by her fall?
Integumentary System
When people lose their sense of smell, they often lose their sense of taste as well. Scientists believe this happens because both smell and taste involve chemoreceptors. How do both smell and taste involve chemoreceptors?
Both smell and taste involve chemoreceptors because they both respond to chemicals in the environment.
Define: Excretory System
a group of organs that remove waste from the body
Define: Nervous System
a group of organs that act as the control center for the entire body
Define: Sensory Receptor
a structure that is specialized to detect stimuli in the environment
A group of closely interacting organs that carry out a specific function.
Organ System
What would happen if 1 part of the body system stopped working properly?
The other body systems will slowly start to shutdown and stop working
Define: Immune System
a group of organs that defend the body against infectious organisms and other harmful invaders
Define: Organ
a structure composed of two or more tissue types that work together to carry out a specific function
Define: Tissue
a group of similarly specialized cells that perform a specific function
Which is the correct order of hierarchy for the levels of an organism from smallest to largest?
cell, tissue, organ, organ system, organism
How animals get information about the outside world.