Exam 11: Human Organization

Usually it is not possible to penetrate inside a body cavity without cutting through protective tissues. However, sperm reach the egg without crossing any epidermal barrier. After traveling through the vagina, which body cavity will the sperm enter?

To which system does the spinal cord belong?

A home heating system is an example of a positive feedback mechanism.

Which of the following body systems rids the body of metabolic wastes and helps regulate the fluid balance and pH of the blood?

Blood is unlike other types of connective tissue in that the matrix is not made by the cells.

What type of bone contains numerous bony plates separated by irregular spaces?

Melanin is a substance responsible for

Why would it make sense to have the birthing process controlled by a positive feedback loop?

Which function is correctly matched to its type of tissue?

Which of the following functions would not be lost or seriously compromised if someone suffered a severe burn over most of their body?

Which of the following is an organ system?

A person enters a heat chamber carrying a raw egg on a plate. As the temperature is gradually increased, the exposed egg is cooked while the subject maintains a normal internal temperature. What mechanism is lacking in the egg but is present in the human subject that maintains homeostasis?

Which system is one of the two main body systems that helps maintain homeostasis by regulating other body systems?

In which direction does a nerve impulse usually move?

An example of a negative feedback system is when there is too much of a particular chemical in the body and a sensor detects it and brings about a response that causes the levels to drop.

What type of epithelium contains thin, flat cells stacked upon each other?

What is the numerical relationship of neuroglial cells compared to neurons?

What is the main reason for the presence of a pimple?

Which of these is part of a neuron?

If you wash your skin and hair many times a day, you will soon have dry skin that cracks and bleeds because you have removed the ________ secreted by ________ that is necessary to keep the skin supple.