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8 Body Systems

Body Systems

Largest portion of the brain; responsible for voluntary activities of the body, intelligence, learning and judgement Cerebrum
Second largest portion of the brain located at the back of the skull; coordinates balance and coordination Cerebellum
Tough connective tissue that joins muscles to bones Tendons
Connective tissue in a joint that holds bones together (holds bone to bone) Ligament
Connective tissue that is softer and more flexible than bone and cushions the joints Cartilage
Muscles that are attached to bones and control voluntary movement. They are striated. Skeletal Muscles
Striated muscle in the heart that is not under voluntary control Cardiac Muscle
Muscle tissue that lines internal organs and are not under voluntary control Smooth Muscle
Place where two bones meet Joint
System of bones, ligaments, tendons, and cartilage that supports the body, protects internal organs, produces red blood cells, stores minerals Skeletal System
Where in the body are red blood cells made? In the bones
Where in the body are minerals stored? in the bones
What is the main job of red blood cells? To carry oxygen to the cells
Are skeletal muscles voluntary or involuntary? voluntary
are the muscles lining organs voluntary or involuntary? involuntary
What two kinds of muscle are striated? Cardiac muscle and skeletal muscle
What kind of muscle is smooth? the kind of muscle that lines the inside of our organs
What is an effector? A muscle. A stimulI "creates an effect" or contraction response of the muscle
The gap or space across which a neuron transfers an impulse over to another neuron Synapse
Signals that cause nervous responses Stimuli (Ex.a change in the environment, something hot that could burn, something loud or frightening, something sweet...)
A SENSORY cell that detects changes in the environment (stimuli) and begins a sensory response Receptor ("Receives" the information from the environment.)
A nerve cell that conducts impulses Neuron
Messages from receptors to the brain and back to the effectors Impulses
Coordinates the body's response to external and internal changes in its environment; includes brain, nerves, and spinal cord Nervous System
Cells that have receptors for specific hormones Target cells
A system in the human body that helps maintain homeostasis. Feedback Mechanism
The product of a system shuts down the system, such as pancreas and insulin Feedback Inhibition
Structures in the male reproductive system that produce sperm Testes
A disease in which the pancreas produces too little insulin so blood sugar is elevated Diabetes
Structures in the female reproductive system that produce eggs Ovaries
The gland responsible for maintaining blood sugar levels by secreting insulin or glucagon Pancreas
Located on top of the kidneys, these two glands help the body prepare for and deal with stress (fight or flight) by secreting adrenaline Adrenal Glands
This gland controls the body's metabolism by secreting thyroxin Thyroid
Gland found at the base of the skull; secretes nine hormones that directly regulate many body functions and controls the actions of several other glands Pituitary Gland
Controls the secretions of the pituitary gland Hypothalamus
A chemical released by a gland into the bloodstream to affect specific target cells Hormone
A gland that releases chemicals called hormones directly into the bloodstream Endocrine Gland
Area of the brain that controls the functioning of internal organs Medulla
Created by: ltorff