Multiple Choice
Which type of cell signaling is exemplified when a sudden release of luteinizing hormone (LH) by the anterior pituitary triggers ovulation in the ovaries?
106
views
10. Cell Signaling
Introduction to Cell Signaling
Multiple Choice
Which of the following is NOT a category of endocrine gland stimulus?
A
Neural stimulus
B
Hormonal stimulus
C
Humoral stimulus
D
Chemical stimulus
Verified step by step guidance1
Step 1: Begin by understanding the concept of endocrine gland stimuli. Endocrine glands release hormones in response to specific stimuli, which can be categorized into three main types: neural, hormonal, and humoral stimuli.
Step 2: Define each type of stimulus: Neural stimulus involves direct stimulation by the nervous system (e.g., adrenal medulla releasing adrenaline in response to nerve signals). Hormonal stimulus occurs when one hormone triggers the release of another hormone (e.g., hypothalamic hormones stimulating the pituitary gland). Humoral stimulus refers to changes in blood levels of ions or nutrients that trigger hormone release (e.g., low calcium levels stimulating parathyroid hormone release).
Step 3: Analyze the options provided in the question. Neural stimulus, hormonal stimulus, and humoral stimulus are all established categories of endocrine gland stimuli.
Step 4: Evaluate the term 'chemical stimulus.' While hormones are chemical messengers, 'chemical stimulus' is not a recognized category of endocrine gland stimulus. It is not specific enough to describe the mechanisms by which endocrine glands are stimulated.
Step 5: Conclude that the correct answer is 'chemical stimulus,' as it does not fit into the established categories of endocrine gland stimuli (neural, hormonal, humoral).
Related Videos
Related Practice
