Exam 1: Introduction to Physiology and Homeostasis

What must a body control system do to maintain homeostasis?​

Body systems maintain ____________________,a dynamic steady state in the internal environment.

Describe a typical physiologist's explanation of shivering.

____________________ or systemic controls are regulatory mechanisms initiated outside an organ.​

Enzymes are specialized proteins that speed up particular chemical reactions in the body.​

Physiology is best defined as the _____.​

The three types of muscle tissue include skeletal,smooth,and connective.

What is the best definition of a body system?

The reproductive system is not essential for homeostasis,nor is it essential for survival of the individual.​

The integumentary system consists of ____.

What occurs when a cell differentiates?

Intrinsic,or local,controls are learned by an organ.

Two natural categories of stem cells are ____________________ cells and tissue-specific cells from ____________________.​

Each living organism must perform the following equation: food + O₂ ➞ CO₂ + H₂O + ____________________.​

The hormone oxytocin is controlled by a(n)____________________ feedback loop during the birthing process.

Which mineral is most important for muscle movement and is stored in the skeletal system?​

Because the body's goal is to maintain stable,homeostatic conditions,positive feedback occurs more often than negative feedback.​

What is a predicted outcome of a severe homeostatic disruption?​

The output in a positive feedback system becomes ____.

Tissues are groups of ____________________ with similar specialization.