Question

94.) The small fold of tissue that secures the tongue to the floor of the mouth is called

the lingual philtrum

the lingual frenulum

uvula

the labial frenulum

95.) Extrinsic salivary glands differ from intrinsic salivary glands because

intrinsic glands are completely within the mouth and are regulated by the somatic (voluntary) nervous system

extrinsic glands are outside the mouth and are regulated by the somatic (voluntary) nervous system

extrinsic glands are outside the mouth and are regulated by the autonomic nervous system

extrinsic glands are completely within the mouth and are regulated by the autonomic nervous system

96.) The microscopic functional units of the liver, endocrine pancreas and exocrine pancreas are called_____

the hepatic triade, the acinus and the islet of Langerhans

the acinus, the lobule and the islet of Langerhans

the islet of Langerhans, the lobule and the acinus

the lobule, the islet of Langerhans and the acinus

97.) __________ is an overabundance of billirubin (a bile pigment) in the blood.

Jaundice

Hepatitis

Cirrhosis

Ureamia

Pancreatitis

98.) Pancreatic zymogens are primarily activated in the duodenum by

the alkaline pH found in the duodenum

Pepsinogen from chief cells

the acidic pH found in the duodenum

the brush boarder enzyme enterokinase

zymogens don’t need to be activated as they are already functional

Answer 1

94) The lingual frenulum

Explanation- it is a small fold of mucus membrane which extends from the floor of mouth to the midline of ventral side of tongue.It helps to support the tongue and limit its movements in different directions.It is also essential for speech.

95) extrinsic glands are outside the mouth and are regulated by the autonomic nervous system.

Explanation- intrinsic salivary glands are located within the oral mucosa in the tongue, lips and pharynx whereas extrinsic glands are located outside the mouth.They are- parotid, sublingual and sub maxillary salivary glands. These are regulated by autonomic nervous system and therefore is involuntary.

96)the lobule,the islet of Langerhans and the acinus

Lobule is the functional unit of liver consisting of hepatocytes, central vein and portal triad. Islet of Langerhans is the endocrine pancreas which secrete hormones like insulin and glucagon. Acinus is the exocrine part which secrete pancreatic enzymes.

97) Jaundice

Jaundice is characterized by increased bilirubin in the blood,causing yellowish discoloration in the eyes,palms etc.Bilirubin pigment is formed from breakdown of red blood cells.Therefore its increased levels indicates increased hemolysis.

98) the brush border enzyme enterokinase

Pancreatic zymogens activation begins with conversion of inactive tripsinogen into active trypsin by action of enzyme enterokinase released from brush border of duodenum.