OM...Homeostasis
Maintaining internal body conditions despite changes to the external environment.
What is homeostasis?
Primary organ of the respiratory system. It is separated in two parts and located behind the breast bone.
What are the lungs?
This cell carries oxygen and nutrients to all cells of the body and removes cellular waste.
What is a red blood cell?
The cells of the nervous system
What is are nerves or neurons?
How would your body react to the following stimulus? Which systems would react?
External temperatures are much colder than internal temperatures.
What is the brain (nervous) would tell the muscles (muscular) to shiver?
Physically tearing or grinding food apart into smaller pieces.
What is chemical digestion?
Running parallel to the food tube, this pipe brings oxygen to the lungs.
What is the trachea?
These vessels carry blood INto the heart
What are veins?
This is how nerves communicate with one another (send messages)
What are electrical impulses?
How would your body react to the following stimulus? Which systems would react?
Blood glucose levels are low.
Various answers acceptable.
Where nutrients are absorbed and most chemical digestion occurs.
What is the small intestine?
Which system do the lungs work with most closely.
What is the circulatory system?
The tubes which carry blood from the heart to the rest of the body.
What are the arteries?
These nerves dens messages from sense receptors to the brain.
What are sensory neurons?
How would your body react to the following stimulus? Which systems would react?
A cut causes a loss of blood.
Brain (nervous) would tell bones (skeletal) to produce more blood (circulatory).
2 out of the 3 systems acceptable.
What is the purpose of the digestive system?
To extract nutrients from food, and get rid of waste.
What is the purpose of the respiratory system?
To fuel the body with oxygen and remove carbon dioxide.
This vessel is where diffusion of nutrients and gases occurs
What are capillaries?
Name the following types of nerves:
1) Communicate messages from sensory neurons to motor neurons
2) Communicate messages to the muscles
What are:
1) Interneurons
2) Motor Neurons
How might your body react to the following stimulus? Which systems would react?
A pathogen escapes the first line of defense and enters an open wound.
Various answers acceptable.
Histamines would stimulate blood flow to the infected area. Swelling would occur. Immune system.
Describe how the circulatory and digestive systems work together to maintain metabolic homeostasis.
Glucose comes from eaten carbohydrates and is absorbed to the blood stream and delivered to cells so that cells can undergo cellular respiration to get usable energy. Additional energy is stored.
There are about 300 million of these in each lung.
What is alveoli?
Explain where the blood obtains the following and where it delivers each.
1) Oxygen
2) Glucose
3) Carbon dioxide.
1) Lungs; mitochondria of body's cells
2) small intestine; mitochondria of body's cells
3) mitochondria of body's cells; lungs
Name the sense organ for the following stimulus/ nerve combinations:
1) chemical; Olfactory nerve
2)electromagnetic (light); optic nerve
3) temperature/pressure; free nerve endings
4) chemical; papilla (taste buds)
5)sounds waves; vestibulocochlear nerve
1) nose
2) eye
3) skin
4) tongue
5) ear