What is a bronchus?
This is the tube that branches off the trachea and enters the lungs.
What is the trachea?
The tube that goes from the nasal cavity and carries air to the lungs.
What is the pharynx?
The area at the back of the throat.
What is the diaphragm?
The thin muscle that divides the chest cavity and abdominal cavity.
What is the larynx?
It is also known as the voice box.
This accounts for 90% of lung cancers.
Increases the risk of stroke and heart attack.
Every year in the US this kills about 440,000 people.
This increases the risk of having emphysema and COPD.
This is responsible for premature aging of the skin, resulting in characteristic wrinkles around the mouth and on the face.
What is diffusion?
How oxygen moves from the alveoli to the capillaries.
How many oxygen molecules can each hemoglobin molecule carry?
Hemoglobin contains what inorganic molecule, to which oxygen binds?
Hemoglobin also carries this waste product of metabolism.
These finger-like projections in the trachea help sweep mucous and foreign particles up and out of the respiratory tract.
Arteries carry blood this direction from the heart.
Veines carry blood this direction from the heart.
To the heart.
This plasma proteine is involved in blood clotting.
What is the matrix in which blood cells are suspended?
These proteins interfere with the ability of a virus to infect cells neighboring an infected cells
What branch of the immune system is not antigen specific
Innate immune system
What cell type make antibodies?
What are the cells that are infected by HIV?
Helper T cells.
What cells attack virus infected cells directly?
Cytotoxic T cells.
Where HIV comes from?
It mutated from a virus in chimps.
This enzyme is used to make copies of HIV's RNA genome into proviral DNA.
What bodily secretions can HIV be found in?
Blood, genital and breast milk.
What dose AIDS stand for?
Acquired Immunodeficiency Syndrome
What skin cancer is often seen in AIDS patients
What is a loss or gain of heat between objects in direct contact?
What is a loss or gain of heat by movement of air across a surface?
What animals maintain their body heat by using heat generated by metabolism?
What animals maintain their body heat by transfer of heat from external sources.
These insects shiver together in a group to maintain warmth in the winter and fan droplets of water in the summer to cool off their home
What are examples of animal adaptations used to keep warm?
Fur, feathers and blubber
What are examples of behavioral adaptations used to regulate body heat?
Migration, shivering, moving to shade, curling up to sleep
What animals have the same internal concentration as seawater?
Most nitrogenous waste come from what two sources?
Amino acids and nucleic acids.
Most aquatic animals secret their nitrogen in what form?