ATI RN
Chapter 3 Cells and Tissues Review Questions Answers Questions 
            
        Question 1 of 5
Identify the function of keratin.
Correct Answer: C
Rationale: Keratin, in stratified squamous epithelium (e.g., skin), waterproofs and protects.
Question 2 of 5
What type(s) of muscle tissue is(are) striated?
Correct Answer: D
Rationale: Skeletal and cardiac muscle are striated; smooth muscle lacks striations.
Question 3 of 5
Multi-cellular glands that do not have a duct are called glands and multi-cellular glands that have a duct are called
Correct Answer: A
Rationale: Endocrine glands lack ducts (blood delivery); exocrine glands have ducts (surface delivery).
Question 4 of 5
Cancers of muscle, bone, or cartilage are called
Correct Answer: D
Rationale: Sarcomas originate from connective tissues like muscle, bone, or cartilage.
Question 5 of 5
A neuron that carries information from the peripheral nervous system to the central nervous system is
Correct Answer: A
Rationale: Afferent neurons carry sensory information from the PNS to the CNS.
