ATI TEAS 6 EXAM 200 ACTUAL QUESTIONS AND CORRECT
ANSWERS WITH RATIONALE ALREADY GRADED A+
NEW!!!!!!!!!!!!!!!!!!!!!!!!!!
1. Which term describes the body's ability to maintain a stable internal
environment despite external changes?
A) Metabolism
B) Homeostasis
C) Anabolism
D) Catabolism
Correct Answer: B
Rationale: Homeostasis is the maintenance of a relatively stable internal
environment. Metabolism (A) includes all chemical reactions. Anabolism (C) is
building molecules; catabolism (D) is breaking down molecules .
2. The plane that divides the body into equal left and right halves is called:
A) Coronal plane
B) Transverse plane
C) Sagittal plane
D) Midsagittal plane
Correct Answer: D
Rationale: The midsagittal plane divides the body into equal left and right halves.
The sagittal plane divides the body into left and right portions but not necessarily
equal halves .
3. The plane that divides the body into superior and inferior portions is the:
A) Sagittal plane
B) Coronal plane
C) Transverse plane
D) Midsagittal plane
Correct Answer: C
Rationale: The transverse (horizontal) plane divides the body into superior (upper)
and inferior (lower) portions .
4. The term "proximal" means:
A) Away from the point of attachment
B) Closer to the point of attachment
,C) Toward the midline
D) Away from the midline
Correct Answer: B
Rationale: Proximal means closer to the point of attachment to the trunk. Distal (A)
means farther away. Medial (C) means toward midline; lateral (D) means away
from midline .
5. Which body cavity contains the brain?
A) Thoracic cavity
B) Abdominal cavity
C) Cranial cavity
D) Pelvic cavity
Correct Answer: C
Rationale: The cranial cavity contains the brain. The thoracic cavity (A) contains
heart and lungs. Abdominal (B) contains digestive organs. Pelvic (D) contains
bladder and reproductive organs .
6. The heart is located in which cavity?
A) Abdominal
B) Pelvic
C) Pericardial (within thoracic)
D) Cranial
Correct Answer: C
Rationale: The heart is located in the pericardial cavity, which is within the
thoracic cavity (mediastinum) .
7. Which term means "below" or "lower" in position?
A) Superior
B) Inferior
C) Anterior
D) Posterior
Correct Answer: B
Rationale: Inferior means lower or below. Superior (A) means above. Anterior (C)
means front. Posterior (D) means back .
8. Which term means "toward the midline of the body"?
A) Lateral
B) Medial
C) Proximal
D) Distal
,Correct Answer: B
Rationale: Medial means toward the midline. Lateral (A) means away from the
midline. Proximal (C) means closer to attachment. Distal (D) means farther from
attachment .
9. The diaphragm separates which two body cavities?
A) Cranial and spinal
B) Thoracic and abdominopelvic
C) Abdominal and pelvic
D) Pericardial and pleural
Correct Answer: B
Rationale: The diaphragm separates the thoracic cavity (above) from the
abdominopelvic cavity (below) .
10. The study of tissues is called:
A) Anatomy
B) Physiology
C) Histology
D) Cytology
Correct Answer: C
Rationale: Histology is the study of tissues. Cytology (D) is the study of cells.
Anatomy (A) is the study of structure. Physiology (B) is the study of function .
11. Which chamber of the heart receives deoxygenated blood from the body?
A) Left atrium
B) Right atrium
C) Left ventricle
D) Right ventricle
Correct Answer: B
Rationale: The right atrium receives deoxygenated blood from the body via the
superior and inferior vena cava .
12. Which valve prevents backflow of blood from the left ventricle into the left
atrium?
A) Tricuspid valve
B) Pulmonary valve
C) Mitral (bicuspid) valve
D) Aortic valve
Correct Answer: C
, Rationale: The mitral (bicuspid) valve prevents backflow from the left ventricle
into the left atrium. The tricuspid valve (A) is on the right side .
13. What is the correct order of blood flow through the heart?
A) Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle →
Body
B) Left atrium → Left ventricle → Lungs → Right atrium → Right ventricle →
Body
C) Right atrium → Left atrium → Lungs → Right ventricle → Left ventricle →
Body
D) Right ventricle → Right atrium → Lungs → Left ventricle → Left atrium →
Body
Correct Answer: A
Rationale: Deoxygenated blood enters right atrium → right ventricle → pulmonary
artery to lungs → oxygenated blood returns via pulmonary veins to left atrium →
left ventricle → aorta to body .
14. The sinoatrial (SA) node is known as the:
A) Pacemaker of the heart
B) Conduction pathway to ventricles
C) Valve between atria and ventricles
D) Blood vessel supplying the heart
Correct Answer: A
Rationale: The SA node is the natural pacemaker that initiates each heartbeat .
15. Which blood vessels have the thinnest walls and allow for exchange of gases
and nutrients?
A) Arteries
B) Arterioles
C) Capillaries
D) Veins
Correct Answer: C
Rationale: Capillaries are one cell thick, allowing diffusion of oxygen, carbon
dioxide, nutrients, and wastes .
16. The normal average adult heart rate at rest is approximately:
A) 40-50 bpm
B) 60-100 bpm
C) 100-120 bpm
D) 120-140 bpm
ANSWERS WITH RATIONALE ALREADY GRADED A+
NEW!!!!!!!!!!!!!!!!!!!!!!!!!!
1. Which term describes the body's ability to maintain a stable internal
environment despite external changes?
A) Metabolism
B) Homeostasis
C) Anabolism
D) Catabolism
Correct Answer: B
Rationale: Homeostasis is the maintenance of a relatively stable internal
environment. Metabolism (A) includes all chemical reactions. Anabolism (C) is
building molecules; catabolism (D) is breaking down molecules .
2. The plane that divides the body into equal left and right halves is called:
A) Coronal plane
B) Transverse plane
C) Sagittal plane
D) Midsagittal plane
Correct Answer: D
Rationale: The midsagittal plane divides the body into equal left and right halves.
The sagittal plane divides the body into left and right portions but not necessarily
equal halves .
3. The plane that divides the body into superior and inferior portions is the:
A) Sagittal plane
B) Coronal plane
C) Transverse plane
D) Midsagittal plane
Correct Answer: C
Rationale: The transverse (horizontal) plane divides the body into superior (upper)
and inferior (lower) portions .
4. The term "proximal" means:
A) Away from the point of attachment
B) Closer to the point of attachment
,C) Toward the midline
D) Away from the midline
Correct Answer: B
Rationale: Proximal means closer to the point of attachment to the trunk. Distal (A)
means farther away. Medial (C) means toward midline; lateral (D) means away
from midline .
5. Which body cavity contains the brain?
A) Thoracic cavity
B) Abdominal cavity
C) Cranial cavity
D) Pelvic cavity
Correct Answer: C
Rationale: The cranial cavity contains the brain. The thoracic cavity (A) contains
heart and lungs. Abdominal (B) contains digestive organs. Pelvic (D) contains
bladder and reproductive organs .
6. The heart is located in which cavity?
A) Abdominal
B) Pelvic
C) Pericardial (within thoracic)
D) Cranial
Correct Answer: C
Rationale: The heart is located in the pericardial cavity, which is within the
thoracic cavity (mediastinum) .
7. Which term means "below" or "lower" in position?
A) Superior
B) Inferior
C) Anterior
D) Posterior
Correct Answer: B
Rationale: Inferior means lower or below. Superior (A) means above. Anterior (C)
means front. Posterior (D) means back .
8. Which term means "toward the midline of the body"?
A) Lateral
B) Medial
C) Proximal
D) Distal
,Correct Answer: B
Rationale: Medial means toward the midline. Lateral (A) means away from the
midline. Proximal (C) means closer to attachment. Distal (D) means farther from
attachment .
9. The diaphragm separates which two body cavities?
A) Cranial and spinal
B) Thoracic and abdominopelvic
C) Abdominal and pelvic
D) Pericardial and pleural
Correct Answer: B
Rationale: The diaphragm separates the thoracic cavity (above) from the
abdominopelvic cavity (below) .
10. The study of tissues is called:
A) Anatomy
B) Physiology
C) Histology
D) Cytology
Correct Answer: C
Rationale: Histology is the study of tissues. Cytology (D) is the study of cells.
Anatomy (A) is the study of structure. Physiology (B) is the study of function .
11. Which chamber of the heart receives deoxygenated blood from the body?
A) Left atrium
B) Right atrium
C) Left ventricle
D) Right ventricle
Correct Answer: B
Rationale: The right atrium receives deoxygenated blood from the body via the
superior and inferior vena cava .
12. Which valve prevents backflow of blood from the left ventricle into the left
atrium?
A) Tricuspid valve
B) Pulmonary valve
C) Mitral (bicuspid) valve
D) Aortic valve
Correct Answer: C
, Rationale: The mitral (bicuspid) valve prevents backflow from the left ventricle
into the left atrium. The tricuspid valve (A) is on the right side .
13. What is the correct order of blood flow through the heart?
A) Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle →
Body
B) Left atrium → Left ventricle → Lungs → Right atrium → Right ventricle →
Body
C) Right atrium → Left atrium → Lungs → Right ventricle → Left ventricle →
Body
D) Right ventricle → Right atrium → Lungs → Left ventricle → Left atrium →
Body
Correct Answer: A
Rationale: Deoxygenated blood enters right atrium → right ventricle → pulmonary
artery to lungs → oxygenated blood returns via pulmonary veins to left atrium →
left ventricle → aorta to body .
14. The sinoatrial (SA) node is known as the:
A) Pacemaker of the heart
B) Conduction pathway to ventricles
C) Valve between atria and ventricles
D) Blood vessel supplying the heart
Correct Answer: A
Rationale: The SA node is the natural pacemaker that initiates each heartbeat .
15. Which blood vessels have the thinnest walls and allow for exchange of gases
and nutrients?
A) Arteries
B) Arterioles
C) Capillaries
D) Veins
Correct Answer: C
Rationale: Capillaries are one cell thick, allowing diffusion of oxygen, carbon
dioxide, nutrients, and wastes .
16. The normal average adult heart rate at rest is approximately:
A) 40-50 bpm
B) 60-100 bpm
C) 100-120 bpm
D) 120-140 bpm
