Question

question 12 (1 point)
what is the role of a receptor cell?
to transmit nerve impulses
to inhibit muscle contraction
to detect stimuli
to receive impulses from a neuron
to promote muscle contraction
question 13 (1 point)
injection of which hormone will induce uterine contractions necessary for delivery of
a baby?
calcitonin
oxytocin
insulin
epinephrine

Explanation:

• Question 12: Receptor cells are specialized cells that detect various stimuli (such as light, sound, chemicals, etc.) from the internal or external environment. Nerve impulse transmission is mainly done by neurons (not just receptor cells in isolation). Inhibiting or promoting muscle contraction is more related to motor neurons and muscle - cell interactions. Receiving impulses from a neuron is a more general synaptic - related function, not the core role of a receptor cell.
• Question 13: Oxytocin is well - known for its role in inducing uterine contractions during childbirth. Calcitonin is involved in calcium regulation (lowering blood calcium levels). Insulin is for glucose metabolism (lowering blood glucose). Epinephrine is involved in the "fight - or - flight" response (increasing heart rate, etc.).

Answer:

Question 12: to detect stimuli
Question 13: oxytocin