Answer any two of (a), (b), (c) - Leaving Cert Biology - Question 14 - 2019
Question 14
Answer any two of (a), (b), (c).
(a)
(i) The diagram shows parts of the human central nervous system and some related structures. In your answer book, match each o... show full transcript
Worked Solution & Example Answer:Answer any two of (a), (b), (c) - Leaving Cert Biology - Question 14 - 2019
Step 1
Match the parts labelled A – F to one of the names from the list below.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Sign up now to view full answer, or log in if you already have an account!
Answer
The medulla oblongata controls or regulates involuntary actions such as breathing, heart function, digestion, coughing, swallowing, and blood pressure.
Step 3
2. Give a function of the cerebellum.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The cerebellum is responsible for coordinating voluntary movements and maintaining balance and posture while walking, writing, or other fine motor skills.
Step 4
1. Why is grey matter so called?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Grey matter is composed of cell bodies which appear grey in color due to the presence of neuronal cell bodies and lack of myelin.
Step 5
2. Why is white matter so called?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
White matter is composed of myelin, which surrounds the axons of neurons and gives it a white appearance.
Step 6
What is meant by the term endocrine?
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Endocrine refers to glands that secrete hormones directly into the bloodstream or lymph, which then travel to target organs.
Step 7
1. Name a hormone secreted by the pituitary gland.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
One hormone secreted by the pituitary gland is Adrenocorticotropic hormone (ACTH).
Step 8
2. Give a function of this hormone in the human body.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
ACTH stimulates the adrenal cortex to produce cortisol, which helps regulate metabolism and response to stress.
Step 9
Name one gland in the human body that has both endocrine and exocrine function.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The pancreas serves as both an endocrine gland by secreting insulin and glucagon, and an exocrine gland by producing digestive enzymes.
Join the Leaving Cert students using SimpleStudy...
