Human Body Systems - I

The human body systems work together to maintain homeostasis and ensure proper functioning. For example, the circulatory system delivers oxygen from the respiratory system to body tissues, while the digestive system provides nutrients that the circulatory system transports. The nervous system coordinates these activities, sending signals to other systems for efficient responses. These systems rely on one another to support overall health and survival. One system CANNOT live without the others.

Body Sytems Interdependence

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​

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is all body systems relying on one another for support, ​

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, and survival. One body system ​

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live without the others.

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Multiple Choice

Explain interdependence of body systems.

• The brain thinks about the food it sees and smells.

• The lungs exchange carbon dioxide and oxygen by the movement of the diaphragm and intercostal muscles.

• The skin grows hairs of different thickness throughout the body.

• The teeth come in different shapes and sizes.

The integumentary system includes the skin, hair, nails, and glands, which work together to protect the body. It acts as a barrier against pathogens, UV radiation, and dehydration. This system also helps regulate body temperature through sweat and blood flow. Additionally, it allows for sensory perception, such as touch, pain, and temperature detection.

Integumentary System

Labelling

Label the parts of the Integumentary System.

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Epidermis

Dermis

Fatty Tissue

Oil Gland

Sweat Gland

Blood Vessels

Hair Follicle

Reorder

Describe how the skin cools the body on a hot day.

• The nerves detect an increase in temperature.

• Water is released by sweat glands.

• Blood vessels bring warm blood to the surface.

• As sweat evaporates, it takes the body heat with it.

• Body temperature drops.

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The muscular system is responsible for movement in the body, allowing us to perform activities like walking, running, and lifting. It consists of three types of muscles: skeletal, smooth, and cardiac, each with different functions. Skeletal muscles are attached to bones and allow voluntary movement, while smooth muscles control involuntary movements in organs like the stomach. The cardiac muscle makes up the heart and is responsible for pumping blood throughout the body.

Muscular System

Categorize

Options (9)

Voluntary Movement

Involuntary Movement

Nonstop pumping

Biceps, Gluteus Maximus

intestine walls

heart

Organize these options into the right categories

Skeletal Muscle

Smooth Muscle

Cardiac Muscle

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Skeletal muscle is ​

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and attached to ​

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for movement, smooth muscle is ​

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and found in internal organs like the ​

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, and cardiac muscle is involuntary, striated, and makes up the ​

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.

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voluntary

bones

involuntary

intestines

heart

liver

lungs

The skeletal system provides structure and support to the body, giving it shape and allowing for movement. It protects vital organs, such as the brain, heart, and lungs, by surrounding them with bone. Bones also store minerals, like calcium and phosphorus, and release them into the bloodstream when needed. Additionally, the skeletal system houses bone marrow, where blood cells are produced.

Skeletal System

Labelling

Label the skeleton

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Fibula

Tibia

tarsals

Femur

Patela

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Label the Skeleton

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Carpals

Sternum

Clavicle

Skull

Radius

Humerus

Mandible

Ulna

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The circulatory system transports blood, oxygen, nutrients, and hormones throughout the body. The heart pumps blood through blood vessels, such as arteries, veins, and capillaries, to reach various tissues and organs. It also removes waste products like carbon dioxide and urea from cells for elimination. By maintaining blood flow, the circulatory system helps regulate body temperature and supports immune function (white blood cells).

Circulatory System

Match

Match the following words that describe the circulatory system.

• Arteries

• Veins

• function of blood

• capillaries

• heart

blood away from the heart

blood toward the heart

transport

exchange gasses, wastes, and nutrients

pumping action

• blood away from the heart

• blood toward the heart

• transport

• exchange gasses, wastes, and nutrients

• pumping action

Match

Match the following

• absorb nutrients

• exchange oxygen and carbon dioxide

• release urea waste

• connect arteries to veins

capillaries in small intestine

capillaries in lungs

capillaries in nephrons in kidneys

capillaries

• capillaries in small intestine

• capillaries in lungs

• capillaries in nephrons in kidneys

• capillaries

Reorder

Reorder the flow of blood coming from the body without oxygen to the body with oxygen.

• From the body without oxygen to the heart

• from the heart to the lungs without oxygen

• from the lungs with oxygen to the heart

• from the heart with oxygen to the body

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The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide. Air is inhaled through the nose or mouth, travels down the trachea, and enters the lungs where gas exchange occurs in the alveoli. Oxygen from the air is absorbed into the bloodstream, while carbon dioxide is expelled from the blood into the lungs to be exhaled. This system helps maintain the body’s oxygen levels and supports cellular respiration for energy production.

Respiratory System

Fill in the Blanks

Labelling

Label the parts of the respiratory system.

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pleura

bronchioles

bronchus

Nasal Passage

Trachea

pharynx

diaphragm

alveoli

Reorder

Reorder the following statements about breathing.

• The diaphragm contracts to pull in air.

• The nasal passage filters and warms the air.

• The air travels down the trachea to the bronchioles and to the alveoli.

• oxygen and carbon dioxide exchange in the alveoli.

• the diaphragm relaxes releasing air.

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Capillaries are small blood vessels that ​

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arteries to veins and facilitate the ​

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of oxygen, nutrients, waste products, and gases between the ​

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and surrounding tissues, ensuring cellular function and ​

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.

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connect

exchange

bloodstream

homeostasis

intestines

seperate