Homeostasis and Body Systems

Temperature Control: Too Hot

• Body sweats to cool down.

• Body shivers to generate heat.

• Body increases blood flow to the skin.

• Body retains heat to stay warm.

Growth and Development

• Controlled by hormones from the endocrine system.

• Influenced by environmental factors only.

• Determined solely by genetics.

• A process that occurs only in childhood.

Tags

NGSS.MS-LS1-5

Respiratory System during Exercise

• Breathes faster to supply more oxygen.

• Breathes slower to conserve energy.

• Breathes normally regardless of activity level.

• Breathes only through the mouth during exercise.

Nervous System function

• Controls all body functions, processes information from senses, sends messages

• Regulates body temperature and metabolism

• Facilitates digestion and nutrient absorption

• Supports immune response and healing

Purpose of Homeostasis

• Keeps everything in the body just right.

• Regulates body temperature only.

• Increases metabolic rate during exercise.

• Promotes growth and development of tissues.

Chemical Messenger

• Another term for hormones.

• Substances that speed up chemical reactions.

• Elements that combine to form compounds.

• Particles that carry electric charge.

Sweating during Exercise

• Helps cool the body down.

• Increases body temperature.

• Dehydrates the body.

• Reduces muscle fatigue.

Shivering

• A heating mechanism activated when the body is too cold.

• A process of muscle contraction to generate heat.

• A response to excessive heat in the body.

• A method of cooling the body down.

Real-Life Example of Homeostasis

• Temperature and blood sugar control.

• Oxygen and carbon dioxide exchange in the lungs.

• Digestion of food in the stomach.

• Absorption of nutrients in the intestines.

Tags

NGSS.HS-LS1-3

Role of the Digestive System

• Acts as your food processor

• Stores energy for later use

• Filters toxins from the blood

• Regulates body temperature