Page 1 of 1: MCQ "5"

wasem · Credits: 8592 My Scrapbook

Question 8. IN BONE DEVELOPMENT

(a) chondroblasts develop in primitive mesenchyme and form an early perichondrium and cartilage model
True False

(b) the term diaphysis refers to the shaft region
True False

(c) the term epiphysis refers to the club-shaped expansion at the end of long bones
True False

(d) the epiphyseal plate can be divided into periosteum, bone collar and osteoprogenitor zones
True False

(e) postnatal increase in length is due to endochondral bone formation near the end of long bones.
True False

Question 9. THE PARATHYROID GLANDS

(a) are always four in number
True False

(b) secrete parathormone in response to a high serum calcium
True False

(c) contain chief cells which are the main hormone secretors
True False

(d) contain a variable amount of adipose tissue
True False

(e) may develop benign tumors which lead to bone destruction
True False

Question 10. MATCH THE COMPONENTS OF THE ADRENAL WITHTHE RELEVANT MAJOR SECRETION

zona reticularis androgens
True False

medulla (nor)epinephrine
True False

zona fasciculata cortisone
True False

zona glomerulosa aldosterone
True False

Question 11. THE PITUITARY GLAND

(a) is divided into two parts, the anterior (neurohypophysis) and posterior (adenohypophysis)
True False

(b) is supplied by blood vessels which run from the hypothalamus
True False

(c) secretes ADH from the adenohypophysis
True False

(d) has most of the GH-secreting cells in the lateral wings of the adenohypophysis
True False

(e) is sited in the sella turcica
True False

Question 12. PROXIMAL CONVOLUTED TUBULE EPITHELIUM

(a) shows extensive microvilli on luminal surface
True False

(b) shows extensive basal interdigitation
True False

(c) reabsorbs water from glomerular filtrate
True False

(d) excretes glucose into the glomerular filtrate
True False

(e) is partly controlled by the level of antidiuretic hormone (ADH) secreted by the posterior pituitary
True False

Question 13. THE JUXTAGLOMERULAR APPARATUS

(a) is located in the glomerular mesangium
True False

(b) contains highly specialized myoepithelial cells which also contain neuroendocrine granules
True False

(d) secretes angiotensin
True False

(e) secretes renin
True False

(a) is important in maintaining plasma volume and blood pressure
True False

Question 14. IN THE LOWER URINARY TRACT

(a) the renal pelvis, ureter and bladder are lined by transitional epithelium
True False

(b) the ureter has two muscle layers
True False

(c) the bladder has two muscle layers
True False

(d) the male urethra is lined by a pseudostratified columnar epithelium throughout its length
True False

(e) the female urethra is lined mainly by a stratified squamous epithelium
True False

Question 15. THE SPERMATOZOON

(a) contains the haploid nucleus in the head region
True False

(b) has an acrosomal cap which contains several enzymes believed to help with penetration of the ovum
True False

(c) contains an axoneme which is based on actin filaments
True False

(d) is rich in mitochondria in the middle piece
True False

(e) is formed by maturation of spermatids and takes place adjacent to the luminal surface of Leydig cells
True False

		Sign In New User? Sign Up Sign in to access your control panel and messenger!
				TechZone \| SpiderNevi \| HowTo? \| Scrapbook!