Life Science: Human Body Systems

Dual View: Mainstream Science vs. Biblical Creation

Grade 7 | Truth Carriers Academy

Table of Contents

1Introduction: Fearfully & Wonderfully Made

RECEIVE - Understanding Our Design

"I will praise You; for I am fearfully and wonderfully made: marvelous are Your works; and that my soul knows right well." - Psalm 139:14

WHAT TEXTBOOKS TEACH

The human body evolved over millions of years from simpler organisms. Body systems developed gradually through random mutations and natural selection. Each organ system is the result of evolutionary pressures.

WHAT SCRIPTURE SAYS

Yahuah created humans fully formed on Day 6 of Creation. He designed our bodies with incredible precision and purpose. Every system works together as evidence of intelligent design, not random chance.

PROBLEMS WITH THE EVOLUTIONARY VIEW

The 11 Major Body Systems

SystemMain Function
SkeletalSupport, protection, movement, blood cell production
MuscularMovement, heat production
CirculatoryTransport oxygen, nutrients, waste
RespiratoryGas exchange (oxygen in, carbon dioxide out)
DigestiveBreak down food, absorb nutrients
NervousControl, communication, senses
EndocrineHormone regulation
Immune/LymphaticDefense against disease
IntegumentaryProtection (skin, hair, nails)
UrinaryWaste removal, water balance
ReproductiveProduce offspring

REFLECT - Questions

1. What does "fearfully and wonderfully made" tell us about our Creator?

2. Why does the interdependency of body systems point to design rather than evolution?

2The Skeletal System

RECEIVE - Our Framework

"And Yahuah Elohim caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof." - Genesis 2:21

Skeletal System Facts

Functions: Support, protection, movement (with muscles), blood cell production (in marrow), mineral storage (calcium)

WHAT TEXTBOOKS TEACH

The human skeleton evolved from fish fins, then to amphibian limbs, to reptile structures, and finally to mammalian bones. "Vestigial" bones like the coccyx (tailbone) are remnants of our evolutionary ancestors.

WHAT SCRIPTURE SAYS

Yahuah designed the human skeleton for upright walking from the beginning. Our bones are perfectly suited for human life and function. The coccyx anchors important muscles - it's not vestigial!

PROBLEMS WITH EVOLUTIONARY VIEW

Types of Bones

TypeDescriptionExamples
Long bonesLonger than wide, shaft and two endsFemur, humerus
Short bonesCube-shaped, mostly spongy boneCarpals, tarsals
Flat bonesThin, protect organsSkull, ribs, scapula
Irregular bonesComplex shapesVertebrae, pelvis

REFLECT - Questions

1. How many bones does an adult have?

2. What are the four functions of the skeletal system?

a)

b)

c)

d)

3. Why is the coccyx NOT a vestigial organ?

3The Muscular System

RECEIVE - The Power of Movement

"In his neck remains strength, and sorrow is turned into joy before him." - Job 41:22

Muscular System Facts

Three Types of Muscle

TypeControlLocationAppearance
SkeletalVoluntaryAttached to bonesStriated (striped)
SmoothInvoluntaryOrgans, blood vesselsNon-striated
CardiacInvoluntaryHeart onlyStriated, branched

WHAT TEXTBOOKS TEACH

Muscle tissue evolved from simpler contractile cells in primitive organisms. The three muscle types developed independently over millions of years.

WHAT SCRIPTURE SAYS

Yahuah designed each muscle type for specific purposes - skeletal for voluntary movement, smooth for digestion and blood flow, cardiac to pump blood continuously without fatigue.

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. Match the muscle type to its description:

a) Attached to bones, voluntary:

b) Found in organs, involuntary:

c) Found only in heart:

2. How many times does the heart beat per day (approximately)?

4The Circulatory System

RECEIVE - The River of Life

"For the life of the flesh is in the blood." - Leviticus 17:11
Yahuah revealed this truth thousands of years before science confirmed it!

Circulatory System Facts

Components

PartFunction
HeartPumps blood through two circuits
ArteriesCarry blood AWAY from heart
VeinsCarry blood TO the heart
CapillariesExchange gases, nutrients at tissue level
Red Blood CellsCarry oxygen (hemoglobin)
White Blood CellsFight infection
PlateletsBlood clotting
PlasmaLiquid carrying cells, nutrients, waste

WHAT TEXTBOOKS TEACH

The circulatory system evolved from simple diffusion in single-celled organisms to open circulatory systems to closed systems with hearts.

WHAT SCRIPTURE SAYS

Yahuah designed the circulatory system as a complete, functioning unit. He declared "life is in the blood" - a truth Moses recorded 3,400 years ago that medicine only confirmed in the 1600s!

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. What did Yahuah reveal in Leviticus 17:11 about blood?

2. Arteries carry blood from the heart.

Veins carry blood the heart.

3. Why does blood clotting show evidence of design?

5The Respiratory System

RECEIVE - The Breath of Life

"And Yahuah Elohim formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul." - Genesis 2:7

Respiratory System Facts

Parts of the Respiratory System

Upper: Nose, nasal cavity, pharynx, larynx

Lower: Trachea, bronchi, bronchioles, alveoli, lungs

Process: Inhale O₂ → blood picks up oxygen → releases CO₂ → exhale

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. How many breaths do we take per day (approximately)?

2. What gas do we inhale? What gas do we exhale?

3. How does Genesis 2:7 connect breathing to our creation?

6The Digestive System

RECEIVE - Processing Yahuah's Provision

"Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of Elohim." - 1 Corinthians 10:31

Digestive System Path

Journey of food: Mouth → Esophagus → Stomach → Small intestine → Large intestine → Rectum

Accessory organs: Liver, gallbladder, pancreas

Length: ~30 feet from mouth to anus

Time: 24-72 hours for complete digestion

Digestive Functions

OrganFunction
MouthMechanical breakdown, salivary enzymes (amylase)
StomachAcid (HCl), protein digestion (pepsin)
Small intestineMost nutrient absorption, villi increase surface area
LiverProduces bile, detoxifies blood
PancreasDigestive enzymes, insulin production
Large intestineWater absorption, bacteria produce vitamins

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. List the path of food through the digestive system:

Mouth → → Large intestine → Rectum

2. What does Yahuah command about clean and unclean foods in Leviticus 11? Why might this matter for digestion?

7The Nervous System

RECEIVE - The Body's Control Center

"For who has known the mind of Yahuah?" - Romans 11:34
The human brain reflects Yahuah's infinite intelligence!

Nervous System Facts

Divisions of the Nervous System

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. How many neurons are in the brain?

2. What are the two parts of the Central Nervous System?

a) b)

3. Why can't evolution explain human consciousness?

8The Endocrine System

RECEIVE - Chemical Messengers

Major Endocrine Glands

GlandHormonesFunction
PituitaryGrowth hormone, TSH, FSH, LH"Master gland" - controls others
ThyroidT3, T4Metabolism regulation
AdrenalCortisol, adrenalineStress response
PancreasInsulin, glucagonBlood sugar regulation
PinealMelatoninSleep-wake cycle

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. Which gland is called the "master gland"?

2. What hormone regulates blood sugar?

9The Immune System

RECEIVE - The Body's Defense Army

"He shall cover you with His feathers, and under His wings shall you trust: His truth shall be your shield and buckler." - Psalm 91:4
Just as Yahuah protects us spiritually, He designed our immune system to protect us physically!

Three Lines of Defense

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. What is the first line of immune defense?

2. Why is the immune system evidence of design?

10The Reproductive System

RECEIVE - Yahuah's Gift of Life

"So Elohim created man in His own image, in the image of Elohim created He him; male and female created He them. And Elohim blessed them, and Elohim said unto them, Be fruitful, and multiply." - Genesis 1:27-28

Design for Complementarity

Yahuah created male and female with complementary systems designed to work together for procreation. This is not random evolution but purposeful design.

PROBLEMS WITH EVOLUTIONARY VIEW

REFLECT - Questions

1. According to Genesis, what did Yahuah command regarding reproduction?

2. Why does the existence of male AND female point to design?

11Systems Working Together

RECEIVE - Integration and Interdependence

"For as the body is one, and has many members, and all the members of that one body, being many, are one body..." - 1 Corinthians 12:12

How Systems Depend on Each Other

Example: Running

THE ULTIMATE PROBLEM FOR EVOLUTION

No system can function without the others! The circulatory system needs the heart (muscular) to pump, blood vessels to carry blood, lungs to get oxygen, the brain to control heartbeat, and bones to produce blood cells.

This interdependency proves design! All systems had to exist and work together from the beginning.

REFLECT - Questions

1. Pick two body systems and explain how they depend on each other:

2. How does 1 Corinthians 12:12 apply to our physical bodies?

12Caring for Our Bodies

RECEIVE - Stewardship of Yahuah's Temple

"Know ye not that your body is the temple of the Set-Apart Spirit which is in you, which ye have of Elohim, and ye are not your own? For ye are bought with a price: therefore glorify Elohim in your body." - 1 Corinthians 6:19-20

Biblical Health Principles

PrincipleApplicationScripture
Clean foodsFollow Leviticus 11 dietary lawsLeviticus 11
Rest (Sabbath)Weekly rest for body restorationExodus 20:8-11
Avoid toxinsNo drunkenness, harmful substancesProverbs 20:1
Exercise/workPhysical labor is goodGenesis 2:15
CleanlinessWashing, hygiene practicesLeviticus 15
Mental healthTrust Yahuah, avoid anxietyPhilippians 4:6-7

RESPOND - Application

1. Why should we take care of our bodies according to 1 Corinthians 6:19-20?

2. List three ways you can better care for Yahuah's temple (your body):

a)

b)

c)

Answer Key (Selected)

Unit 2: 1) 206 bones; 2) Support, protection, movement, blood cell production

Unit 3: 1a) Skeletal, b) Smooth, c) Cardiac; 2) 100,000+

Unit 4: 2) Away, to

Unit 5: 1) 20,000; 2) Oxygen, Carbon dioxide

Unit 6: 1) Esophagus, Stomach, Small intestine

Unit 7: 1) 86 billion; 2) Brain, Spinal cord

Unit 8: 1) Pituitary; 2) Insulin

Unit 9: 1) Physical barriers (skin, mucus)