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Biology CP Final Exam
Terms in this set (78)
Simplest level of organization
Groups of similar cells that perform a single function
A group of tissues that work together to form a complex function
A group of organs that perform closely related functions
How many organ systems make up the human body?
Which tissue controls internal and external movements?
Which tissue covers the surface of the body and lines the internal organs?
Which tissue holds organs and body parts together, providing support for the body?
Which tissue coordinates actions throughout the body and responds to an external and internal stimuli?
Which term is used to describe the process by which organisms maintain a relative level of the stable internal environment?
Which term is used to describe the process by which the product of a system shuts down the system or is limited?
Negative feedback or feedback inhibition
For a neuron to reach an action potential, it must...
Reverse the electrical charge across the membrane
When in action potential reaches the end of an ear on it triggers the a chemical called a what?
What transmits nerve impulses across synapses?
What part of the brain controls voluntary, conscious activities of the body?
What part of the brain coordinates muscle activity for grace and efficiency?
What part of the brain controls in voluntary actions as blood pressure, heart rate, breathing, and swallowing?
What part of the brain receives messages from the sense organs?
What part of the brain recognizes hunger, thirst, fatigue, anger, and body temperature?
Transmit impulses from sensory organs to CNS.
Transmits impulses from CNS to muscles and glands.
Controls activities under conscious control.
Somatic nervous system
Regulates activities that are involuntary, automatic.
Autonomic nervous system
What are five functions of the skeletal system?
1. Supports the body
2. Protects internal organs
3. Provides for movement
4. Stores mineral reserves
5. Site for blood cell formation
How many bones are in the adult human skeleton?
What is the tough layer of connective tissue surrounding the bone?
What are the network of tubes containing nerves and blood vessels running through the compact bone?
What is the tissue inside the compact bone, providing a latticework for strength without adding mass?
Yellow marrow is primarily...
Red marrow makes...
What is the skeleton of the newborn baby almost entirely composed of?
What is the process of bone formation called?
When does ossification start?
Seven months before birth and continues until late adolescence or early adulthood
Which cells create bones?
Which cells maintain the cellular activities of bone?
Which cells break down bone?
What is the place called for one bone attaches to another bone?
What is the structure of the joint that attaches bone to bone?
What percentage of the mass of the average human body is muscle?
Cardiac muscle is found where?
Which filaments are made up of protein?
Myosin and Actin
A muscle contracts when...
Actin slides over myosin
What attaches skeletal muscle to bone?
What is the protective sac around the heart called?
What is the think layer of muscle in the heart called?
How many liters of blood does the human body contain?
45% of blood volume is...
55% of blood volume is...
How much percent of plasma is water?
What do red blood cells contain that bind to oxygen?
What do white blood cells do?
Fight infections, parasites, and bacteria
What are platelets important for?
The Lymphatic System is a network of vessels, nodes and organs which collet fluid lost by the blood and... (finish the statement)
returns it back to the circulatory system
What part cleans, warms and moistens the air?
What structure in the throat contains the vocal cords?
What part is the passageway for both food and air?
Which part contains the windpipe, which leads to two bronchi?
What is the passageway from the wind pipe into each lung called?
What is the tiny airsac at the end of the bronchiole in the lungs for gas exchange called?
What is the action called where oxygen and carbon dioxide cross the membrane?
When the lungs contract, what does the rib cage do?
It rises up.
Name the organs in the digestive system:
mouth -> pharynx->esophagus->stomach->small intestine->large intestine->rectum->anus
What breaks down starch?
What breaks down protein?
What breaks down fat?
Tube connecting mouth to stomach...
Large muscular sac that continues the mechanical digestion of food...
Digestive organ in which most chemical digestion takes place...
Organ the removes water from the undigested materials that pass through it...
Large organ above the stomach the produces bile...
Organ that stores bile and secretes into the small intestine...
organ that removes urea, excess water, and other waste products...
Tube that carries urine from kidney to urinary bladder...
Saclike organ in which urine is stored before being excreted...
Tube through which urine and semen are released from the body...
What is the mixture the stomach makes food into...
What are three parts of the pancreas?
1. produces insulin
2. produces enzymes
3. produces sodium bicarbonate
What is the function of the excretory system?
To maintain homeostasis and to remove waste
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