Week 2(2) 3(1) - Interaction & Interdependence of organ systems 2

What defines an organ system?

An organ system is a group of organs that work together to perform a complex function.

How do organ systems contribute to homeostasis?

Organ systems interact and interdepend on one another to maintain the stability of the body's internal environment.

What are the main categories of organ systems?

Organ systems can be broadly grouped into Infrastructure Systems, Regulation/Regulatory Systems, Energy Systems, and the Reproductive System.

What is the role of the integumentary system?

The integumentary system helps maintain a constant body temperature, protects the body, and provides sensory information.

What interactions occur between the integumentary system and the skeletal system?

The integumentary system helps activate vitamin D for calcium absorption, which is essential for bone health.

How does the cardiovascular system contribute to homeostasis?

It transports oxygen, nutrients, and hormones, and helps regulate pH and temperature, along with providing protection against disease.

What is the function of the lymphatic system?

The lymphatic system drains interstitial fluid and provides mechanisms for defense against disease.

How does the urinary system contribute to homeostasis?

The urinary system excretes wastes and alters blood composition, pH, volume, and pressure.

What is the relationship between the respiratory system and the muscular system?

The respiratory system and the muscular system work together to regulate breathing and support physical activities.

How do hormones play a role in the interaction between the endocrine and reproductive systems?

Hormones like testosterone and estrogens exert feedback effects on the hypothalamus and pituitary gland, affecting reproductive functions.

What is the importance of the digestive system in homeostasis?

The digestive system breaks down nutrients for energy, absorbs water and minerals, and eliminates wastes.

How do the urinary and respiratory systems help regulate pH?

Both systems work together to adjust the pH of body fluids through waste excretion and gas exchange.

What is the significance of the muscular system's interaction with the cardiovascular system?

The muscular system's contractions help return blood to the heart and regulate blood flow through blood vessels.

What role do antibodies play in the reproductive system?

Antibodies in the semen and vaginal fluids provide immunity against microbes in the genital tract.

How does the integumentary system defend against pathogens?

The integumentary system acts as a barrier and produces chemical secretions to discourage microbial growth.

Why is the relationship between organ systems essential for survival?

The coordinated activities of all organ systems, controlled by the endocrine and nervous systems, are crucial to maintaining homeostasis.