Brightwell_ShelbyAnn Test Skin Flashcards
- How does the skin help regulate body temperature?
By enabling excess heat to escape from the body (23. Notes - Homeostasis)
- What is one of the things found in the hypodermis?
Nerve (20. CLF - Skin)
- Positive feedback mechanisms are:
More rare then negative feedback mechanisms and tend to increase the original stimulus (19. BP - Homeostasis)
- The hormone that signals the kidneys to regulate the amount of water in the body is
Antidiuretic (23. Notes - Homeostasis)
- In your body the type of feedback that happens daily is
Not positive or negative (19. BP - Homeostasis)
- For a new cell to move from the basal layer to the top of the epidermis it takes approximately
2 weeks (27. BP - Skin)
- You have a new epidermis after
3-5 weeks (27. BP - Skin)
- What would happen if the core body temperature was too low?
Sweat would cool the body as it is evaporated. (23. Notes - Homeostasis)
- How many atoms of hydrogen are in hydrogen peroxide?
4 (26. Lab - Enzymes and Temperature)
- Sweat glands
Aid in cooling the body (20. CLF - Skin)
- Which organelles release chemicals that break down large food particles into smaller ones?
Lysosomes (25. Lab - Edible Cell)
- What might happen if your respiratory center malfunction?
The oxygen level in your blood might go out of balance. (23. Notes - Homeostasis)
- Which of the following will help cool the body?
Evaporation of sweat from the skin surface. (23. Notes - Homeostasis)
- High fever during an illness part of which feedback?
Positive (19. BP - Homeostasis)
- How many layers of skin cells are found in the epidermis?
5 (20. CLF - Skin)
- What is an example of positive feedback?
A woman nursing a baby. (19. BP - Homeostasis)
- The independent variable in our experiment with the lab – enzymes and temperature was
Water temperature (26. Lab - Enzymes and Temperature)
- Fat is one ________ type of tissue.
Connective (17. Notes - Histology)
- What is the function of the organelle that surrounds the nucleus?
Endoplasmic Reticulum distributes protein. (25. Lab - Edible Cell)
- What is the function of the organelle that is similar to the endoplasmic reticulum?
Golgi body packages and distributes protein. (25. Lab - Edible Cell)
- Describe how skin helps maintain body temperature if a person becomes cold/warm
Blood vessels in the skin contract to decrease the amount of blood that flows through them. This allows heat to stay inside the body. Sweat glands in the skin reduce perspiration to none. Hairs on the skin stand up because the arrector pili muscle has contracted which produces goose bumps on the skin, reducing skin surface area.
Blood vessels in the skin enlarge to increase the amount of blood that flows through them. This allows heat to move from the body into the outside environment. Sweat glands in the skin produce perspiration. As the perspiration evaporates it carries heat into the air. Hairs on the body lie flat. Skin smoothes out and allows heat out. (23. Notes - Homeostasis)