Throwback Lab(Development 1)
Throwback Lecture
Germ Layers
Lab Fill in the Blank
Lecture
100

A fertilized egg is called a?

zygote

100

T or F: A deficiency in Vitamin K causes impaired coagulation.

True, Vitamin K Deficiency: impaired coagulation

100

Which layer do the nails originate from?

Ectoderm

100

The wall of the uterine cavity is composed of inner epithelial _______________ and outer muscular ______________.

endometrium, myometrium

100

What does the Hairpin Bend describe?

The turn in the loop of Henle between the Ascending limb and descending limb

200

The number of cells needed to be considered a morula is?

16 or more

200

Which class of nephrons is most common?

A) Cortical Nephrons

B) Juxtamedullary Nephrons

C) Juxtaglomerular Nephrons

D) All of these have the same number of nephrons

A) Cortical Nephrons

200

Which layer forms the skin and the nervous system?

Ectoderm

200

The placenta is composed of the maternal decidua __________ and the fetal chorionic villi.

Basalis

200

How do ADH inhibitors affect urinary output

They enhance it.

300

The trophoblast becomes 2 layers, the inner being the ____________ and outer being the  ____________.

cytotrophoblast, syncytiotrophoblast

300

A patient’s lipid panel shows elevated LDL and low HDL. Which statement best explains why this combination increases the risk of atherosclerosis?

A. LDL removes excess cholesterol from tissues, while HDL delivers cholesterol to cells.

B. LDL delivers cholesterol to peripheral tissues, while HDL returns cholesterol to the liver.

C. HDL and LDL both primarily transport triglycerides, not cholesterol.

D. HDL increases liver cholesterol synthesis, while LDL decreases it.

B

300

Which layer creates the gut tube and inner organ linings?

endoderm

300

The rest of the endometrium (that isn't in contact with the placenta), where villi are absent, isolates the embryo from the uterine cavity and is called the decidua ___________.

Capsularis

300

The countercurrent exchange is controlled by which vessels?

vasa recta

400

implantation occurs around day _____ or _____?

six, seven

400

Describe the difference between external and internal respiration

• External respiration–diffusion of gases in

lungs

• Internal respiration–diffusion of gases at

body tissues

400

Which layer creates the kidneys?

Mesoderm

400

On the former implantation pole, the villi grow more strongly (______________), while the villi in the other areas decrease in number (________________).

chorion frondosum, chorion laeve

400

What is freely permeable in the descending limb of Henle? 

Water

500

Where does fertilization most commonly occur?

The ampulla of the uterine fallopian tube.

500

Calculate TV

A respiratory therapist measures a patient’s breathing during quiet rest. The patient’s minute ventilation is 6.0 L/min, and their respiratory rate is 12 breaths per minute.

Using this information, find the patient’s tidal volume.

Minute Ventilation=Tidal Volume⋅Respiratory Rate 

TV= Minute Ventilation/Respiratory rate

Tidal Volume=0.5 L or 500 mL

500

Which layer creates the gonads?

Mesoderm
500

Cells from the epiblast further displace the hypoblast, forming the embryonic _____________ in the roof of the yolk sac. The cells remaining in the epiblast form the embryonic ___________.

ectoderm, endoderm

500

Volume of filtrate formed per minute by both kidneys?

A) 25-30 L/min

B) 100-300 ml/min

C) 2-3 L/min

D) 120-125 ml/min

D) 120-125 ml/min

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