☑ATI TEAS 7 Science Full
Package Latest 2026 Update
Exam
ATI TEAS 7 SCIENCE PRACTICE EXAM
200 Questions with Answers & Rationales
SECTION 1: HUMAN ANATOMY & PHYSIOLOGY (Questions
1-70)
1. Which of the following is the functional unit of the kidney?
A) Neuron
B) Nephron
,C) Alveolus
D) Villus
☑ ☑ Correct Answer: : ☑ B) Nephron
Rationale: The nephron is the functional unit of the kidney responsible for filtering blood
and forming urine. Neurons are nerve cells, alveoli are in the lungs, and villi are in the
small intestine.
2. Blood flows from the right ventricle through which structure?
A) Aorta
B) Pulmonary vein
C) Pulmonary artery
D) Superior vena cava
☑ ☑ Correct Answer: : ☑ C) Pulmonary artery
Rationale: The right ventricle pumps deoxygenated blood into the pulmonary artery, which
carries it to the lungs. The pulmonary vein carries oxygenated blood to the left atrium, and
the aorta carries blood from the left ventricle.
3. Which hormone regulates blood calcium levels by increasing calcium release
from bones?
A) Calcitonin
B) Parathyroid hormone (PTH)
C) Insulin
D) Thyroxine
☑ ☑ Correct Answer: : ☑ B) Parathyroid hormone (PTH)
,Rationale: PTH increases blood calcium by stimulating osteoclasts to break down bone,
increasing calcium absorption in the intestines, and reducing calcium excretion in urine.
Calcitonin does the opposite—lowers blood calcium.
4. Which layer of the skin contains blood vessels, nerve endings, and hair follicles?
A) Epidermis
B) Stratum corneum
C) Dermis
D) Hypodermis
☑ ☑ Correct Answer: : ☑ C) Dermis
Rationale: The dermis is the middle layer of skin containing blood vessels, nerves, hair
follicles, and glands. The epidermis is avascular, and the hypodermis is mainly adipose
tissue.
5. Which part of the brain is responsible for balance and coordination?
A) Cerebrum
B) Cerebellum
C) Brainstem
D) Hypothalamus
☑ ☑ Correct Answer: : ☑ B) Cerebellum
Rationale: The cerebellum coordinates voluntary movement, balance, and fine motor
control. The cerebrum controls higher functions, the brainstem controls basic life functions,
and the hypothalamus regulates homeostasis.
, 6. Which of the following is a function of the liver?
A) Producing insulin
B) Filtering urine
C) Producing bile
D) Absorbing nutrients
☑ ☑ Correct Answer: : ☑ C) Producing bile
Rationale: The liver produces bile, which emulsifies fats. Insulin is produced by the
pancreas, urine is filtered by the kidneys, and nutrient absorption occurs in the small
intestine.
7. Which type of muscle is striated and involuntary?
A) Skeletal
B) Smooth
C) Cardiac
D) Voluntary
☑ ☑ Correct Answer: : ☑ C) Cardiac
Rationale: Cardiac muscle is striated and involuntary. Skeletal muscle is striated and
voluntary. Smooth muscle is non-striated and involuntary.
8. Oxygenated blood returns to the heart from the lungs via the:
A) Pulmonary artery
B) Pulmonary veins
Package Latest 2026 Update
Exam
ATI TEAS 7 SCIENCE PRACTICE EXAM
200 Questions with Answers & Rationales
SECTION 1: HUMAN ANATOMY & PHYSIOLOGY (Questions
1-70)
1. Which of the following is the functional unit of the kidney?
A) Neuron
B) Nephron
,C) Alveolus
D) Villus
☑ ☑ Correct Answer: : ☑ B) Nephron
Rationale: The nephron is the functional unit of the kidney responsible for filtering blood
and forming urine. Neurons are nerve cells, alveoli are in the lungs, and villi are in the
small intestine.
2. Blood flows from the right ventricle through which structure?
A) Aorta
B) Pulmonary vein
C) Pulmonary artery
D) Superior vena cava
☑ ☑ Correct Answer: : ☑ C) Pulmonary artery
Rationale: The right ventricle pumps deoxygenated blood into the pulmonary artery, which
carries it to the lungs. The pulmonary vein carries oxygenated blood to the left atrium, and
the aorta carries blood from the left ventricle.
3. Which hormone regulates blood calcium levels by increasing calcium release
from bones?
A) Calcitonin
B) Parathyroid hormone (PTH)
C) Insulin
D) Thyroxine
☑ ☑ Correct Answer: : ☑ B) Parathyroid hormone (PTH)
,Rationale: PTH increases blood calcium by stimulating osteoclasts to break down bone,
increasing calcium absorption in the intestines, and reducing calcium excretion in urine.
Calcitonin does the opposite—lowers blood calcium.
4. Which layer of the skin contains blood vessels, nerve endings, and hair follicles?
A) Epidermis
B) Stratum corneum
C) Dermis
D) Hypodermis
☑ ☑ Correct Answer: : ☑ C) Dermis
Rationale: The dermis is the middle layer of skin containing blood vessels, nerves, hair
follicles, and glands. The epidermis is avascular, and the hypodermis is mainly adipose
tissue.
5. Which part of the brain is responsible for balance and coordination?
A) Cerebrum
B) Cerebellum
C) Brainstem
D) Hypothalamus
☑ ☑ Correct Answer: : ☑ B) Cerebellum
Rationale: The cerebellum coordinates voluntary movement, balance, and fine motor
control. The cerebrum controls higher functions, the brainstem controls basic life functions,
and the hypothalamus regulates homeostasis.
, 6. Which of the following is a function of the liver?
A) Producing insulin
B) Filtering urine
C) Producing bile
D) Absorbing nutrients
☑ ☑ Correct Answer: : ☑ C) Producing bile
Rationale: The liver produces bile, which emulsifies fats. Insulin is produced by the
pancreas, urine is filtered by the kidneys, and nutrient absorption occurs in the small
intestine.
7. Which type of muscle is striated and involuntary?
A) Skeletal
B) Smooth
C) Cardiac
D) Voluntary
☑ ☑ Correct Answer: : ☑ C) Cardiac
Rationale: Cardiac muscle is striated and involuntary. Skeletal muscle is striated and
voluntary. Smooth muscle is non-striated and involuntary.
8. Oxygenated blood returns to the heart from the lungs via the:
A) Pulmonary artery
B) Pulmonary veins
