TEKS 7.12B identify the main functions of the systems of the human organism including the circulatory, respiratory, skeletal,
muscular, digestive, excretory, reproductive, integumentary, nervous and endocrine systems
Body System Parts & Functions
Muscles: skeletal, smooth, cardiac &
tendons
Bones, cartilage, ligaments & bone
marrow
Mouth, esophagus, stomach &
intestines
Kidneys, bladder, liver, skin, lungs &
large intestine
Muscular System
Allows the body to move.
Skeletal System
Digestive System
Frame that supports and protects
parts of the body.
Breaks down and absorbs nutrients for
the body.
Excretory System
Removes wastes and regulates fluids.
Respiratory System
Responsible for gas exchange.
Nose, trachea, bronchi, lungs & alveoli
Circulatory System
Transports materials throughout body.
Heart, blood vessels & blood
Nervous System
Receives and sends messages
throughout the body.
Glands secrete hormones that
regulate body processes.
Allows organisms to produce
offspring.
Protects body, prevents fluid loss &
helps regulate body temperature.
Endocrine System
Reproductive System
Integumentary System
Brain, spinal cord & body nerves
Pancreas & glands (pituitary, pineal,
thyroid, adrenal & thymus)
Testes, ovaries & uterus
Skin, sweat glands, oil glands, hair &
nails
Blood carries digested
nutrients to the body cells.
1. Circulatory system
2. Digestive system
The blood helps to close small
cuts in the skin.
1. Circulatory system
2. Integumentary system
Muscles churn the stomach to
break down food.
1. Muscular system
2. Digestive system
The brain stem controls the
heart rate.
1. Nervous system
2. Circulatory system
The brain stem regulates
breathing rate.
1. Nervous system
2. Respiratory system
Signals travel down the spinal
cord to move muscles.
1. Nervous system
2. Muscular system
Bone marrow produces new
blood cells.
1. Skeletal system
2. Circulatory system
1. Muscular system
2. Respiratory system
Muscle contractions move the
bone.
1. Muscular system
2. Skeletal system
Muscles raise the hair on the arms
and legs to help retain heat.
Hormones cause males to gain
muscle during puberty.
Muscles between the ribs expand
to help move air into the lungs.
Blood carries hormones
throughout the body.
1. Circulatory system
2. Endocrine system
1. Muscular system
2. Integumentary system
1. Endocrine/ reproductive system
Sneezing involves involuntary
muscle contractions.
1. Muscular system
2. Respiratory/ excretory system
Wastes are filtered from the
blood by the kidneys.
1. Excretory system
2. Circulatory system
The lungs remove carbon
dioxide from the body.
1. Respiratory system
2. Excretory system
Smooth muscle contractions
empty urine from the bladder.
1. Muscular system
2. Excretory system
The heart muscles pump to
circulate blood.
1. Muscular system
2. Circulatory system
The muscular diaphragm helps
move air into the lungs.
1. Muscular system
2. Respiratory system
Gases are exchanged between
the alveoli & blood.
1. Respiratory system
2. Circulatory system
Breathing increases during exercise to
supply oxygen to the muscles.
You sweat when you begin to
get overheated.
1. Excretory system
2. Integumentary system
1. Muscular system
2. Respiratory system
2. Muscular system
Cut the cards into strips and randomly distribute to students. Have students find
classmates with corresponding strips: body system + parts + function to form groups of
three. Then have students complete the Body System Parts & Functions sheet.
Muscular System
Skeletal System
Digestive System
Excretory System
Respiratory System
Circulatory System
Nervous System
Endocrine System
Reproductive System
Integumentary System
Receives and sends messages
throughout the body.
Allows the body to move.
Glands secrete hormones that
regulate body processes.
Breaks down and absorbs
nutrients for the body.
Frame that supports and
protects parts of the body.
Removes wastes and
regulates fluids.
Allows organisms to produce
offspring.
Protects body, prevents fluid loss &
helps regulate body temperature.
Transports materials
throughout body.
Responsible for gas
exchange.
Testes, ovaries & uterus
Bones, cartilage, ligaments &
bone marrow
Muscles: skeletal, smooth,
cardiac & tendons
Heart, blood vessels & blood
Skin, sweat glands, oil
glands, hair & nails
Nose, trachea, bronchi, lungs
& alveoli
Mouth, esophagus, stomach &
intestines
Brain, spinal cord & body
nerves
Pancreas & glands (pituitary,
pineal, thyroid, adrenal & thymus)
Kidneys, bladder, liver, skin,
lungs & large intestine
Body System Parts & Functions
Name at least two body systems involved in each scenario below.
Blood carries digested
nutrients to the body cells.
The blood helps to close
small cuts in the skin.
Muscles churn the stomach
to break down food.
1.
1.
1.
2.
2.
2.
The brain stem controls the
heart rate.
The brain stem regulates
breathing rate.
Signals travel down the
spinal cord to move
muscles.
1.
1.
1.
2.
2.
2.
Bone marrow produces new
blood cells.
1.
Muscles between the ribs
expand to help move air
into the lungs.
1.
1.
2.
2.
2.
Hormones cause males to
gain muscle during puberty.
1.
Muscles raise the hair on
the arms and legs to help
retain heat.
1.
1.
2.
2.
2.
Blood carries hormones
throughout the body.
1.
Sneezing involves
involuntary muscle
contractions.
2.
Wastes are filtered from the
blood by the kidneys.
Muscle contractions move
the bone.
The lungs remove carbon
dioxide from the body.
1.
1.
2.
2.
Smooth muscle contractions
empty urine from the
bladder.
1.
The heart muscles pump to
circulate blood.
1.
The muscular diaphragm
helps move air into the
lungs.
1.
2.
2.
2.
Gases are exchanged
between the alveoli & blood.
1.
Breathing increases during
exercise to supply oxygen
to the muscles.
1.
1.
2.
2.
2.
You sweat when you begin
to get overheated.