Understanding Homeostasis and Feedback Mechanisms

Homeostasis

State of balance in body conditions.

Body Temperature

Normal range is ~98.6°F/37°C.

Negative Feedback

Counteracting response to maintain homeostasis.

Positive Feedback

Response intensifies stimulus away from homeostasis.

Set Point

Target value for physiological conditions.

Blood Glucose Level

Normal fasting range is ~70-100 mg/dL.

Sweating

Cooling mechanism activated by high body temperature.

Shivering

Warming mechanism activated by low body temperature.

Oxytocin

Hormone stimulating uterine contractions during labor.

Progesterone

Hormone exerting negative feedback on LH/FSH.

LH (Luteinizing Hormone)

Hormone that surges during ovulation.

FSH (Follicle Stimulating Hormone)

Hormone that regulates reproductive processes.

Estrogen

Hormone that triggers LH/FSH surges around ovulation.

Labor

Process of childbirth involving uterine contractions.

Nerve Impulses

Signals transmitted from cervix to brain.

Gastric Acid pH

Normal range is ~1.5-3 for digestion.

Cooling Mechanism

Body response to high temperatures.

Warming Mechanism

Body response to low temperatures.

Hormone Levels

Concentration of hormones affecting physiological responses.

Cervix

Lower part of the uterus, involved in childbirth.