A drug that destroys viruses or prevents their replication
Antiviral Drug
an immune system cell that coordinates the immune system and attacks many infected cells
T cell
the ability to resist or recover from an infectious disease
immunity
a rope like structure through which blood vessels pass and by which a developing mammal is connected to the placenta
umbilical cord
Describe three functions of the female reproductive system
to produce sex hormones, to produce eggs, and to provide a nourishing environment.
an immune system cell that engulfs pathogens and other materials.
macrophage
the cells and tissues that recognize and attack foreign substances in the body.
Immune system
a sex cell produced by a female
egg
a developing human from the end of the 10th week of pregnancy until birth
fetus
What makes sperm cells and egg cells different from almost all other types of body cells?
they contain only half the number of chromosomes as other body cells, then they must combine w/ each other to reproduce.
A medicine used to kill or slow the growth of bacteria and other microorganisms, such as fungi
Antibiotic
in humans, a developing individual from first division after fertilization throughout the 10th week of pregnancy
embryo
a microorganism, another organism, a virus, or a protein that causes diseases.
pathogen
the partly fetal and partly maternal organ by which materials are exchanged between a fetus and a mother
placenta
How do viruses differ from bacteria, fungi, and parasite?
Viruses are different from bacteria, fungi and parasites, because they can not survive without the presence of a host organism.
What happens if egg is not fertilized?
All the blood and tissues from uterus that were prepared for fertilization escape out of body through vagina. The egg will not to be attached to uterus. This is
a protein made by B cells that binds to a specific antigen.
antibody
in female placenta mammals, the hollow, muscular organ in which an embryo
uterus
the male reproductive organ that transfers sperm to a female and carries urine out of the body
penis
the primary male reproductive organs which produce sperm cells and testosterone
testes
How do pathogens cause infectious diseases?
Pathogens can cause an infectious disease when they enter your body and multiply
A disease that is caused by a pathogen
Infectious disease
a substance that is prepared from weak or killed pathogens or from genetic material and that is introduced into a body to produce immunity.
vaccine
A disease that is caused by hereditary or environmental factors
Noninfectious disease
What are the three main functions of the male reproductive system?
to produce sex hormones, to produce and store sperm, and to deliver sperm to the male reproductive system.
How can infectious and noninfectious diseases affect your personal health?
they both cause your body not to work properly
the female reproductive organ that connects the outside of the body to the uterus
vagina
How can infectious diseases be transmitted?
Person to person, water and food, animals to people, contaminated objects
in the female reproductive system of animals, an organ that produces eggs
ovary
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