Oral Em Week 1 K.C.

true

Fertilization takes place in the distal part of the uterine tube.

ribosomes

Which cellular component facilitates protein synthesis?

ATP

Mitochondria produce which chemical for intracellular energy?

false

DNA replication takes place during the G1 phase of the cell cycle.

progesterone

Which hormone is produced by the placenta?

G1 phase

Which phase of the cell cycle is characterized as the initial resting stage?

true

Endoderm and ectoderm are the first two germ layers to develop.

true

Melanocytes are responsible for skin pigment.

false

Smooth muscle is consciously controlled.

false

The foramen ovale closes during the third week of prenatal life.

tooth dentin

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

angioblasts

Blood cells arise from cells called

false

Tissues are most susceptible to teratogens during the proliferative period.

46

Developmental abnormalities are not associated with which number of chromosomes?

true

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

dense, loose, or loose with special properties

Connective tissue proper is classified as ______________.

4 to 6

The junctional epithelium of gingiva is replenished every _____ days.

false

Equilibrium is controlled by tiny organs, which are located in the middle ear.

endocrine

Which body system relies on neural stimuli to function?

basal layer

Which layer of epithelium is the deepest, germinating layer?

plasma

Each is part of a neuron EXCEPT one. Which is the EXCEPTION?

excretes waste products

Which function is associated with the skin?

mitosis of the basal cells

How does epithelial tissue renew itself?

autonomic

Impulses pass from the CNS to involuntary muscles via the _____ system.

Myelin sheath

Which of the following insulates axons located outside the CNS?

large intestine

The absorption of nutrients occurs in which location?

31

The spinal cord consists of how many segments?

10 to 14

Buccal mucosa renews itself in ____ days.

significantly more

Neuroglia cells are __________ numerous than neurons.

dense

Which of the following is not a type of cartilage?

The migration of leukocytes between endothelial cells to the site of infection

Which best describes diapedesis?

endocrine

Which organ system secretes and regulates hormones in the blood?

Cardiac, skeletal, and smooth

What are the three types of muscle tissue?

Integumentary

Which organ system is the largest?

Reduce food to liquid chyme

Each of the following is a function of the large intestine EXCEPT one. Which is the EXCEPTION?

brain; spinal cord

All body sensations are relayed to the ______ and the _______.

Neuroglia

Which cell supports the nervous system?

Connective

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

Stratified

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

simple

Which term represents a single layer of cells?

cilia

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

endometrium

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

Formation of neural folds.

Which represent the first change in shape of the embryo's body from a flat sheet of cells?

true

The umbilical system carries oxygenated blood.

true

The information in mRNA is translated by ribosomes located on the surface of the rough endoplasmic reticulum.

muscle

Myotome produces which of the following types of tissue?

false

The cardiovascular system originates from chondroblasts.

liver

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

Cardiac

Intercalated disks are present in which type of muscle?