Biology and Physiology Quiz Review Flashcards

Vocabulary flashcards covering tissue functions in the digestive system, liver function, homeostasis mechanisms, feedback loops, and fundamental chemistry concepts.

Epithelial tissue

The type of tissue in the stomach responsible for secreting digestive enzymes.

Muscle tissue

The type of tissue in the stomach whose primary function is to churn and mix food.

Liver

The organ in the digestive system responsible for producing bile.

Connective tissues

Tissues that contribute to the function of organs in the digestive system by providing structural support and connecting different tissues.

Homeostasis

The body's ability to maintain a stable internal environment despite changes in external conditions.

Negative feedback loops

The most common feedback loops that work to counteract changes that deviate from a set point, such as regulation of blood sugar and sweating on a hot summer day.

Positive feedback loops

Less common feedback loops that amplify changes, such as the release of oxytocin during childbirth and lactation.

Sensors

Components in feedback loops that detect changes in the body's environment.

Control centers

Components in feedback loops that process information received from sensors.

Effectors

Components in feedback loops that bring about the necessary adjustments.

Atom

The smallest unit of matter.

Ion

An atom that gains or loses an electron, resulting in an electrical charge.