WorksheetsEMBRO/HISTO Midterm Review
Total questions: 40
Worksheet time: 20mins
The basis of motion in a muscle cell is the change from chemical to mechanical energy by enzymatic cleavage of adenosine diphosphate. Motion in a muscle cell is a result of the action of actin and myosin.
1st statement is false. 2nd statement is true.
1st statement is false. 2nd statement is false.
Cartilage can grow by either endochondral or interstitial growth. Bone grows by either appositional or interstitial growth.
1st statement is false. 2nd statement is true.
1st statement is false. 2nd statement is false.
Tendons connect muscles to the skeleton as they develop. Leukocytes are the most numerous blood cells.
1st statement is true. 2nd statement is true.
1st statement is true. 2nd statement is false.
Which of the following contain nuclei in the process of dying?
Nonkeratinized epithelium.
Parakeratinized epithelium.
Transmembrane proteins may help to transport molecules across the cell membrane. The Golgi apparatus sends proteins to the endoplasmic reticulum.
1st statement is true. 2nd statement is false.
1st statement is false. 2nd statement is true.
Which branchial arch eventually disappears?
Fourth
Fifth
From which structures does the face develop?
Frontonasal process, maxillary process, mandibular arch.
Oropharyngeal membrane, mandibular arch, forebrain.
Once fully healed, the outer-most layer of a graft issue area will be covered with what type of anuclear epithelial tissue?
Keratinized simple squamous epithelium.
Keratinized (or orthokeratinized) stratified squamous epithelium.
During your intraoral examination you can see a large amount mucous secretion coming from the respiratory passages. You assume it is due to the hyperactivity of goblet cells which are found in:
pseudostratified epithelium.
stratified squamous epithelium.
The periodontist biopsied some graft tissue. After treating the specimen for slide viewing, the image was enhanced under a microscope. The section of tissue was similar in nature to the thick skin of the foot. All of the layers of the epithelium could be seen except one. Which layer was this?
Stratum spinosum.
Stratum lucidum.
The variation in thickness of the stratum corneum is due to a physical or chemical trauma.
True
False
The most common cell type in connective tissues such as the pulp and periodontal ligament is the:
white blood cell.
fibroblast.
What is the definition of synchondrosis?
A union of two bones that have been separated by cartilage.
A band of connective tissue containing osteogenic cells.
The masseter muscle uses acetylcholine as the neurotransmitter at the neuromuscular junction.
True.
False
Which of the following muscle(s) is/are controlled without intention?
A.
Cardiac muscle.
B.
Smooth muscle.
C.
Skeletal muscle.
a and b.
b and c.
A sarcomere's borders are between:
A bands.
Z lines.
All sensations received in the neural center are referred to as __________.
afferent.
efferent.
Purkinje fibers are specialized nerve cells associated with cardiac muscle.
True.
False.
Each myofibril is composed of many myofibers.
True
False
Smooth muscle is under unconscious control.
True.
False
The gingiva consists of which of the following histologic structures?
Epithelium and connective tissue.
Epithelium and pulp tissue.
Periodontal disease can be the inflammation/destruction of which of the following structures?
A.
Periodontal ligament.
B.
Pulp.
C.
Cementum.
a and c.
All of the above.
Which of the following is/are replaced every 10 days?
Oral epithelium.
Crevicular epithelium.
Rete pegs are present in which of the following?
A.
Sulcular epithelium.
B.
Junctional epithelium.
C.
Oral epithelium.
a and b.
a and c.
The biologic width (according to the WGTC dental hygiene program) is:
1 mm from the CEJ (cementoenamel junction) to the crest of bone.
2 mm from the CEJ (cementoenamel junction) to the crest of bone.
Crevicular epithelium is located in the gingival sulcus.
True.
False.
Alveolar mucosa is firmly attached to bone.
True
False
Which type of suture interdigitates?
Serrated
Squamosal.
The future heart is located in which of the following structures during development?
Neural swelling.
Pericardial swelling.
Which of the following first appears during the 4th week?
A.
Buccopharyngeal membrane.
B.
The disintegration of the buccopharyngeal membrane.
C.
A heartbeat.
a and b.
a and c.
The disintegration of the __________ creates a communication between the gut and the stomodeum.
pharyngeal membrane.
oropharyngeal membrane.
The blood vessels in the third pharyngeal arch become the:
pulmonary circulation.
common carotid arteries.
The mandibular process develops from the second branchial arch.
True.
False.
From which structures does the face develop?
Frontonasal process, maxillary process, mandibular arch.
Oropharyngeal membrane, mandibular arch, forebrain.
Which branchial arch eventually disappears?
Fourth.
Fifth.
The stem cell that gives rise to other blood cells (neutrophils, eosinophils, mast cells, erythrocytes, etc...) is called a(n):
mesenchymal cell.
hematopoietic cell
Macrophages form from which cell?
Dentinoclasts.
Monocytes.
The basal layer is attached to which vascular tissue?
Stratum basale.
None of the above.
Epithelium found in the bladder is known as __________ epithelium.
stratified.
none of the above.
Which of the following functions first to combat the condition characterized by rubor, calor, dolor, and tumor?
Neutrophils.
Eosinophils
