Human body systems practice

Human Body Systems and Feedback

Digestive System

Circulatory System

•Heart
•Veins
•Arteries
•Blood

Respiratory System

Excretory
System

Immune System (Lymphatic)

Also:
White
Blood
Cells

Multiple Choice

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

Multiple Choice

The system that helps remove the body of waste and regulates the water balance (homeostasis); includes the kidneys and bladder

• Muscular system

• Excretory system

• Endocrine system

• Digestive system

Multiple Select

You are running and start to feel light-headed. Your brain is receiving messages that your body needs more oxygen. What two systems would give your muscles more oxygen?

• Respiratory

• Cardiovascular/ Circulatory

• Excretory

• Endocrine

Skeletal System

•Bones,
cartilage,
ligaments,
tendons,
bone
marrow

Muscular System

•Skeletal
muscle,
cardiac
muscle,
smooth
muscle

Nervous System

Endocrine
System

Reproductive System

Match

Match the following function with the correct system.

• Helps transport nutrients, water, and oxygen throughout the body

• Protects the vital organs and provides shape to the body

• Produces hormones that help regulate growth and development

• Serves as a barrier against infection and injury, outer layer of the body

• Coordinates the body's response to the environment; controls the body's movement and processing

Circulatory system

Skeletal system

Endocrine system

Integumentary system

Nervous system

• Circulatory system

• Skeletal system

• Endocrine system

• Integumentary system

• Nervous system

Match

Match the following organs with their correct system.

• Brain and spinal cord

• Stomach, Liver, Gallbladder, Small intestine

• Bones, ligaments, bone marrow, skull

• Skin, hair, sweat glands, fingernails

• Lungs, nose, trachea

Nervous system

Digestive system

Skeletal system

Integumentary system

Respiratory system

• Nervous system

• Digestive system

• Skeletal system

• Integumentary system

• Respiratory system

Multiple Choice

Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms. Which body systems work together to protect the body from pathogens? 

• Muscular system and Digestive system

• Circulatory system and Immune system

• Integumentary system and Skeletal system

• Reproductive system and Endocrine system

Hotspot

Choose the basic unit of life.

Reorder

Reorder the following from simplest to most complex.

• Cell

• Tissue

• Organ

• Organ System

• Organism

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Homeostasis

This is the process by which our cells and our bodies maintain a stable balance of materials and temperature.

Maintaining a stable internal environment is homeostasis.

Our body systems work together to maintain homeostasis.

Negative Feedback Loop

Occurs to reduce the change or output: the result of a reaction is reduced to bring the system back to a stable state.

It's considered negative because the response doesn't occur forever, it eventually stops.

Example: sweating to cool your body down

Positive Feedback

Occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly.

Example: Contractions for childbirth

Multiple Select

Negative feedback: When we eat a meal, our blood sugar rises. Our pancreas releases a hormone called insulin to help bring our blood sugar back down to normal. In between meals, our blood sugar may dip too low. Then, our pancreas releases a hormone called glucagon to help bring our blood sugar back up. Which two systems are the most closely related in this response? (pick two)

• Digestive system

• Excretory system

• Muscular system

• Circulatory system

Multiple Select

Oxytocin, released by the pituitary gland, is a hormone that intensifies the muscle contractions that take place during childbirth. The stretching of the uterus triggers the secretion of oxytocin, which stimulates uterine contractions. These contractions further stretch the uterus, which cause the secretion of more oxytocin and speeds up labor. Pick two systems that work closely together in this positive feedback mechanism.

• Endocrine system

• Skeletal system

• Reproductive system

• Immune system