ATI TEAS 7
TEAS 7 science practice questions
1. What is the structure that surrounds individual muscle fibers, providing support and aiding in the transmission of force generated during muscle contraction?
- A. Tendon
- B. Endomysium
- C. Perimysium
- D. Epimysium
Correct answer: B
Rationale: The endomysium is the connective tissue layer that surrounds individual muscle fibers, providing support and aiding in the transmission of force generated during muscle contraction. It is crucial for maintaining the structural integrity of muscle fibers and facilitating the transmission of force within them. Tendons (option A) connect muscles to bones, perimysium (option C) surrounds bundles of muscle fibers known as fascicles, and epimysium (option D) encases the entire muscle. The endomysium specifically targets the structure that directly supports and aids in force transmission within individual muscle fibers, making it the correct answer in this context.
2. What is the difference between mass and weight?
- A. Mass is the amount of matter in an object, whereas weight is the force of gravity acting on an object.
- B. Mass is a measure of inertia, whereas weight is a measure of the force of gravity acting on an object.
- C. Mass is measured in pounds, whereas weight is measured in kilograms.
- D. Mass is a vector quantity, whereas weight is a scalar quantity.
Correct answer: A
Rationale: Mass is the amount of matter in an object and is a scalar quantity, whereas weight is the force of gravity acting on an object and is a vector quantity. Mass remains constant regardless of the location, while weight can vary depending on the strength of gravity at different locations. Answer choice A correctly defines the difference between mass and weight, making it the correct answer. Choice B is incorrect because mass is not a measure of inertia. Choice C is incorrect as mass is typically measured in kilograms, not pounds. Choice D is incorrect as mass is a scalar quantity, and weight is a vector quantity.
3. What is the protective sac surrounding the testes in the male reproductive system?
- A. Vas deferens
- B. Scrotum
- C. Epididymis
- D. Urethra
Correct answer: B
Rationale: The scrotum is the correct answer, as it is the protective sac surrounding the testes in the male reproductive system. The scrotum's role is crucial in maintaining the optimal temperature for proper sperm production by regulating the distance of the testes from the body. The vas deferens is a duct responsible for transporting sperm from the testes to the urethra, not the protective sac surrounding the testes. The epididymis is a coiled tube where sperm mature and are stored before ejaculation, not the protective sac. The urethra is a tube that serves as a common passageway for both urine and semen to exit the body, not the protective sac surrounding the testes.
4. Differentiate between epithelial and connective tissue.
- A. Epithelial tissue lines surfaces and glands, while connective tissue supports tendons.
- B. Both are composed of cells, but epithelial tissue lines surfaces and glands, while connective tissue binds other tissues.
- C. Epithelial tissue covers surfaces and connective tissue supports muscle contraction.
- D. Epithelial tissue is the largest tissue type, while connective tissue is the smallest.
Correct answer: B
Rationale: Epithelial tissue covers surfaces and lines organs, while connective tissue provides support and structure throughout the body. Both are composed of cells, but their functions and locations differ. Epithelial tissue acts as a barrier to protect underlying tissues and organs, while connective tissue connects, supports, and separates different types of tissues and organs in the body. Choice A is incorrect as connective tissue supports and binds other tissues, not just tendons. Choice C is incorrect because connective tissue does not support muscle contraction; it provides support to various structures in the body. Choice D is incorrect as the size of a tissue type does not define its function; epithelial tissue and connective tissue serve different purposes in the body.
5. Which of the following is an example of a nosocomial infection?
- A. The common cold contracted from a family member
- B. A urinary tract infection (UTI) acquired during a catheterization
- C. A fungal skin infection from contaminated soil
- D. Food poisoning from undercooked chicken
Correct answer: B
Rationale: A nosocomial infection, also known as a healthcare-associated infection (HAI), is an infection that is acquired in a healthcare setting. In this case, a UTI acquired during a catheterization procedure is a classic example of a nosocomial infection. Catheterization involves the insertion of a tube into the urinary tract, which can introduce bacteria into the urinary system and lead to an infection. Nosocomial infections are a significant concern in healthcare settings due to the potential for increased morbidity, mortality, and healthcare costs. Let's review the other options: A) The common cold contracted from a family member - This is not a nosocomial infection as it is acquired outside of a healthcare setting. C) A fungal skin infection from contaminated soil - This is not a nosocomial infection as it is acquired from environmental exposure, not in a healthcare setting.
Similar Questions
Access More Features
ATI TEAS Premium Plus
$149.99/ 90 days
- Actual ATI TEAS 7 Questions
- 3,000 questions with answers
- 90 days access
ATI TEAS Basic
$99/ 30 days
- 3,000 Questions with answers
- 30 days access