1. When a variable is regulated by negative feedback, its value fluctuates above and below the set point rather than being a constant.
True
False
2. When a blood vessel is damaged, platelets attach and recruit more platelets to the area. These new platelets recruit even more, quickly increasing the number of platelets until the damage is sealed with a blood clot. This amplification is an example of
negative feedback.
positive feedback.
3. Choose the statement that best exemplifies the interrelated nature of anatomy and physiology.
Simple squamous epithelium consists of a single layer of flattened cells, which is appropriate for organs where filtration and diffusion occur.
The ovaries are involved in the production of gametes as well as production of hormones that regulate the menstrual cycle.
The iris of the eye consists of two layers of smooth muscle innervated by the autonomic nervous system.
The stomach is involved in mechanical and chemical digestion, and secretes many enzymes as well as hormones.
1. When a variable is regulated by negative feedback, its value fluctuates above and below the set point rather than being a constant.
True
False
2. When a blood vessel is damaged, platelets attach and recruit more platelets to the area. These new platelets recruit even more, quickly increasing the number of platelets until the damage is sealed with a blood clot. This amplification is an example of
negative feedback.
positive feedback.
3. Choose the statement that best exemplifies the interrelated nature of anatomy and physiology.
Simple squamous epithelium consists of a single layer of flattened cells, which is appropriate for organs where filtration and diffusion occur.
The ovaries are involved in the production of gametes as well as production of hormones that regulate the menstrual cycle.
The iris of the eye consists of two layers of smooth muscle innervated by the autonomic nervous system.
The stomach is involved in mechanical and chemical digestion, and secretes many enzymes as well as hormones.
