A.1 Communication Flashcards
What is homeostasis?
The maintenance of this internal environment within tolerable limits
Regulation of blood pH
- normal pH in arterial blood in 7.35 (slightly alkaline)
- Co2 concentration can and increase hydrogen and can make the blood more acidic
- To maintain homeostasis the brain helps to monitor the pH blood level, if it starts to drop the respiratory system increases the rate of depth breathing to get rid of the access Co2
Regulation of the heart
intrinsic and extrinsic exitation
What is glycogen?
Storage form of glucose
Regulation of blood glucose
The pancreas secretes insulin and glucagon to control blood glucose concentration
- insulin lowers blood sugar by helping cells absorb and store glucose
- glucagon raises blood sugar by releasing stored glucose from the liver
What does insulin do?
It decreases the amount of glucose in your blood system
Regulation of body temperature
-maintains its temperature through a balance of heat production and heat loss
- Hypothalamus helps
Production of heat in the human body
- Physical activity increases body temperature due to heat production.
Adenosine triphosphate (ATP)
A molecule that provide energy for muscle contraction when it is split
Ways to take temperature
- Mercury thermometer
- An ear thermistor
- Rectal probe
Shell temperature
the temperature near the body surface (around the skin)
Core temperature
normal and balanced temperature
Heat transfer
- balance between heat production and heat loss to the environment
- heat can be transferred away from the body via conduction, convection, radiation and evaporation
Conduction
when heat moves from your warmer body to something cooler it’s touching, helping the body lose heat
Convection
- The more cold wind the more heat from your body will be removed more efficiently
Radiation
without needing any physical contact. It’s how you lose heat to the air around you.
Evaporation
is when sweat turns into vapor, and in the process, it removes heat from your body, helping to cool you down.
