Embryology and histology midterm (Concorde)

Facial (smile) muscles develop from the second pharyngeal arch.

True

Mitochondria produce which chemical for intracellular energy?

ATP

Primary teeth begin development at birth.

False

Which muscle grows around the oral pit in the sixth prenatal week?

orbicularis oris

In the first 20 weeks, the prenatal mandible articulates with which bone(s)?

incus and malleus

Which of the following is NOT a muscle of mastication?

orbicularis oculi

The ultimobranchial body is the origin of which hormone?

calcitonin

T cells, B cells, NK cells, and macrophages are produced in the _________.

bone marrow

Which organ is part of the lymphatic system?

thymus

Which tissue does not support the dentition?

Enamel

Which epithelium consists of several layers, with only the basal cell layer in contact with the basal lamina?

stratified

Each tissue originates from mesoderm, EXCEPT one. Which is the EXCEPTION?

liver

Which of the following is clinically seen as tooth eruption?

Blanching of the mucosa

The stages of tooth development occur in which order?

bud, cap, bell

Before the development of the vascular system, the viteline system provides nutrients to the embryo.

True

Which gland regulates the body's calcium balance?

Parathyroid

Which of the following is not a type of cartilage?

dense

Which of the following arises from the first pharyngeal arch?

muscles of mastication

The face develops in the __________ prenatal weeks.

fourth to seventh

Meckel's cartilage provides structure for the developing ________.

Mandible

Which of the following best defines perikymata?

Growth lines visible as ridges on the surface of enamel

The primitive mouth is known as the ________.

stomodeum

Which bronchial arches form the hyoid bone?

II and III

_________ operates as a blueprint or pattern to guide root formation.

Hertwig's epithelial root sheath

The thyroid gland originates from

foramen cecum

The thyroid gland descends to the front of the trachea, attached to the tongue by the thyroglossal _________.

Duct

Which defines the term synchondrosis?

A union of two bones that have been separated by cartilage

Which term represents a single layer of cells?

Simple

Blood is an example of which of the following four primary types tissue?

connective

Which function is associated with the skin?

excretes waste products

Which organ system is the largest?

integumentary system

Connective tissue proper is classified as _________.

Dense, loose, or loose with special properties

Myotome produces which of the following types of tissue?

Muscle

Lamellar are cracks in the surface of enamel and are visible to the naked eye.

True

which body system relies on neural stimuli to function?

Endocrine

Development of the upper lip depends on fusion of the philtrum and maxillary processes.

True

Tomes processes develop in which stage of ameloblast differentiation?

secretion

Intercalated disks are present in which type of muscle?

cardiac

Which type of tissue lines the respiratory tract to move foreign particles out of th respiratory system?

Cilia

The ______ provides an ideal environment for the implantation and growth of the embryo.

endometrium

Which type of bone protects the brain?

membrane

Each of the following is a derivative of ectoderm EXCEPT one. Which is the EXCEPTION?

Tooth dentin

A cleft may occur in the ____.

lip, palate, and mandible

The permanent teeth that replace the primary teeth are called ________.

successional

How does epithelial tissue renew itself?

mitosis of basal cells

Enamel forms from which type of cells?

ectoderm

A combination of genetic and ________ factors are associated with palatal and facial clefts.

Environmental

In which direction do the palatine shelves push the tongue during the 8th prenatal week?

Downward

Special ______cells destroy collagen fibers by ingestion and form collagen fibers as well.

Fibroblast