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In relation to the nose, the ear lies:
Ventromedial
Craniocaudal
Superomarginal
Parasagittal
Posterolateral
Elastin:
a. Is composed of proteoglycans
b. Is produced by elastoblasts
c. Allows tissues to stretch and contract
d. Has high tensile strength
e. Can be seen in the light microscope with H&E staining
Identify the INCORRECT statement. Dense regular connective tissue:
a. Is found in ligaments
b. Resists stretch in a single plane
c. Is found in tendons
d. Is found in the dermis of the skin
e. Contains fibroblasts
Identify the INCORRECT answer. Tight junctions:
a. Control the permeability of epithelia
b. Are continuous belts of interlocking junctional proteins around the circumference of epithelial cells
c. Allow the movement of ions and small molecules between adjoining cells
d. Are involved in maintenance of the blood-retinal barrier
e. Are found only between epithelial (incl. endothelial) cells
Bone is removed by:
a. Osteoblasts
b. Fibroblasts
c. Fibrocytes
d. Osteoclasts
e. Osteocytes
The resolution of the light microscope is about:
a. 0.002 m
b. 0.2 mm
c. 2.0 µm
d. 0.2 µm
e. 2.0 nm
Identify the CORRECT statement.
a. Tendons contain substantial amounts of microtubules
b. Tendons are a form of dense irregular connective tissue
c. Tendons are avascular
d. Tendons contain substantial amounts of collagen fibres
e. Tendons contain substantial amounts of elastic fibres
Identify the INCORRECT answer. The tarsal conjunctival epithelium:
a. Is held together by desmosomes
b. Sits on top of an acellular basal lamina
c. Is a keratinised stratified columnar epithelium
d. Contains many goblet cells
e. Contains nerve endings
Embryologically, epithelial tissue is derived ONLY from:
a. Ectoderm, pachyderm and endoderm
b. Ectoderm
c. Mesoderm, endoderm and ectoderm
d. Epiderm, ectoderm and scleroderm
e. Mesoderm and ectoderm
The epithelium seen in these ducts would be classified as:
a. Pseudostratified columnar
b. Simple columnar
c. Keratinised stratified squamous
d. Simple squamous
e. Stratified cuboidal