ch 25 smartbook questions Flashcards
choose all that are true about muscularis externa
- usually consists of 2 layers of muscle
- it is responsible for propelling food forward through the digestive tract
- the outer layer of muscle run longitudinally
choose the functions of lips and cheeks
- speech articulation
- sucking
- pushing food between the teeth for chewing
the most pointed teeth that act to puncture food are which of the following
canines
which 2 structures are essential for all chewing, speech, sucking, blowing
- cheecks
- tongue
match each tooth with its role in eating
- premolars and molars: crush and grind food
- incisors: bite off pieces of food
- canines: puncture and shred food
which describes a periodontal ligament
collagen fibers that hold a tooth in place
what is the root canal of a tooth filled with
pulp
the portion of a tooth that is above the gum is known as the _____ of the tooth
crown
enamel covers the surface of the crown that the root of each tooth
false
which is true of cement of the teeth
it can regenerate
what type of salivary glands are the lingual, labial, buccal glands
intrinsic
choose all the phase of swallowing that are involuntary
- pharyngeal
- esophageal
the longitudinal wrinkles in the lining of the stomach are called gastricq
rugae
which described the receptive-relaxation response of the stomach
smooth muscle remains relaxed until stimulated to contract by extrinsic nerves
what is a lacteal
a lymphatic capillary within a villus used for lipid absorption
what is a goblet cell
a mucus-secreting epithelial cell
the middle section of the small intestine is the
jejunum
which are found in the upper half of intestinal crypts
enterocytes and goblet cells
what is the function of the brush border
to increase surface area for absorption
tubular glands within the mucosa and submucosa of the small intestine are called intestinal
crypts
glands
what are the components of intestinal juice
water and mucus
which describes segmentation
non-migrating constrictions and relaxation along the intestine
which are found in the upper half of intestinal crypts
enterocytes and goblet cells
choose all that are acheived with small intestinal muscles contractions
- an increased contact of chyme with the intestinal lining
- the mixing of chyme with secretions
- the propelling of contents along the intestines
choose all found in intestinal juice
- mucus
- water
muscular contractions called ____ involve alternating ring-like constrictions at several places along the intestine
segmentation
the digestion of starch by amylase results in the production of which
- oligosaccharides
- maltose
where are micelles made
in the liver
how is water absorbed from the digestive tract
osmosis
what are mass movements
strong peristalic contractions of the large intetine occuring 1-3 times/day
the gut microbiome refers to the many species of bacteria residing where
large intestine
which muscle aids in the voluntary retention of feces
puborectalis muscle
