Anatomy, Physiology, and Histology Quiz

Anatomy and Physiology

• The main focus of anatomy is the study of the structure and organization of living things.

Neurophysiology

• Neurophysiology is the subdiscipline concerned with the physiology of the nervous system.

Homeostasis

• Homeostasis is responsible for maintaining a stable internal environment within a living body, ensuring that conditions such as temperature, pH, and blood sugar levels remain constant.

Pathophysiology

• Pathophysiology studies the changes that occur in the body as a result of disease or injury.

Cell Physiology

• Excitability is related to the ability of a cell to respond to stimuli and generate an electrical impulse.

Negative Feedback

• The primary function of negative feedback in the body is to maintain homeostasis by reversing or counteracting changes that deviate from a set point.
• Negative feedback aims to reduce or eliminate deviations from a set point, thereby maintaining a stable internal environment.
• The effector is the component of a feedback loop responsible for carrying out the final corrective action.
• The integrating (control) center in a feedback loop receives and processes information, making the necessary adjustments to maintain homeostasis.

Positive Feedback

• An example of positive feedback is childbirth, where contractions of the uterus stimulate the release of oxytocin, which in turn increases the strength of contractions.
• If positive feedback goes unchecked in the body, it can lead to unstable and harmful outcomes.
• Positive feedback can produce rapid change with beneficial outcomes in certain scenarios, such as in childbirth or blood clotting.

Receptors

• The role of a receptor in a feedback loop is to detect changes in the body and send signals to the integrating (control) center, triggering a response to maintain homeostasis.