Gastrin can stimulate Hcl secretion by:
Anonymous Quiz
8%
acting on muscarinic receptors on parietal cells
3%
Release of cGMP as 2nd messenger
79%
Indirect action via stimulation of histamine release from ECL cells.
11%
Release of cAMP as a 2nd messenger
Inhibition of the myenteric plexus leads to which of the following?
Anonymous Quiz
92%
Decreased gut motility
4%
Hyperacidity in the stomach.
2%
Diarrhea
2%
Increased secretin hormone release from the duodenum.
Site of action of Omeprazole is:
Anonymous Quiz
3%
Active H and CL cotransport
4%
CL/HCO3 exchange
12%
Na/K pump
82%
H/K ATPase
aeThe filiform papill
Anonymous Quiz
2%
Contain few taste buds
4%
Are red in Color
89%
Are covered by keratinized stratified squamous epithelium
6%
Cover post. 2/3 of the tongue
The fungiform papillae are characterized by :
Anonymous Quiz
11%
Covered by keratinized stratified squamous epithelium
75%
Red appearance
4%
Scattered on post. 2/3 of the tongue
11%
In front of sulcus terminalis only
The fungiform papillae
Anonymous Quiz
9%
Have no taste buds
12%
Covered by simple squamous epithelium
71%
Richly vascularized C.T. core
9%
Only 6-14 papillae
56- One of the following structures is not present in the inguinal canal:
Anonymous Quiz
13%
a- Lymph vessels
68%
b- Femoral branch of genitofemoral nerve
3%
c- Ilioinguinal nerve
16%
d- Testicular vessels
👏1
Regarding the fascial linings of the abdominal walls, one of the following statements is correct:
Anonymous Quiz
2%
a- It is a continuous layer of connective tissue
12%
b- It lies between the visceral peritoneum and muscles
24%
c- The spermatic cord pierces the fascia transversely
63%
d- It has a downward prolongation into the thigh
👍1
- Regarding the rectus abdominis, one of the following statements is correct:
Anonymous Quiz
64%
a- It arises from the front of symphysis pubis and pubic crest
29%
b- Is inserted into seventh, eighth and ninth costal cartilages and xiphoid process
2%
c- Its tendinous inter sections are strongly attached to the posterior wall of rectus sheath
5%
d- Is supplied by ilio-inguinal nerve
Regarding the femoral hernia, one of the following statements is not correct:
Anonymous Quiz
35%
a- It is more common in women
13%
b- Its neck lies below and lateral to the pubic tubercle
13%
c- It is liable to strangulation
39%
d- It extends downwards and medially
🔑 Key
Femoral hernia more common in Female(F,F role),
as Pelvis in female is wider consequently Femoral ring is wider, but the overall commonst hernia is the inguinal one.
Femoral hernia more common in Female(F,F role),
as Pelvis in female is wider consequently Femoral ring is wider, but the overall commonst hernia is the inguinal one.
❤3
After secretion of trypsinogen into the duodenum, the enzyme is converted into its active form, trypsin, by which of the following?
Anonymous Quiz
14%
Chymotrypsin
81%
Enteropeptidase
4%
Procarboxypeptidase
1%
Pancreatic lipase
With maximum salivary secretion rate results in which change in ionic composition?
Anonymous Quiz
12%
K increases
9%
CL decreases
31%
HCO3 concentration increases
48%
Na concentration increases
Which of the following stimulates pancreatic secretion rich in bicarbonates?
Anonymous Quiz
4%
somatostatin
3%
Gastrin
26%
CCK
67%
Secretin
All the following causes secretion of gastric juice during cephalic phase except:
Anonymous Quiz
4%
Food in mouth
3%
Sight of food
86%
Food in stomach
8%
Thought of food
Concerning the circumvallate papillae one of the following is true:
Anonymous Quiz
6%
a. Behind the sulcus terminalis.
4%
b. Covered by keratinized stratified squamous epithelium.
2%
c. No taste buds.
89%
d. von Ebner's glands in the lamina propria.
11. One of the following is true concerning the foliate papillae:
Anonymous Quiz
16%
a. The most numerous papillae in humans.
67%
b. Have parallel ridges.
7%
c. Have mucous glands in the lamina propria.
11%
d. Have scanty taste buds.
👏1
12. The following organ has no taste buds:
Anonymous Quiz
8%
a. Soft palate.
8%
b. Pharynx.
8%
c. Epiglottis.
75%
d. Hard palate.
10. One of the following is true about the circumvallate tongue papillae:
Anonymous Quiz
84%
a. Surrounded by a furrow.
9%
b. Scanty taste buds.
7%
c. Presence of mucous glands.
0%
d. The most numerous papillae.