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Where does fertilization occur? correct answers ampulla of the uterine tube What is a morula? What day is it formed? correct answers The zygote undergoes rapid mitotic division to create a morula on day 4. What is a blastocyst? What day is it formed? correct answers A blastocyst is formed on ...

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  • October 18, 2024
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Anatomy & Embryology 100 Concepts || with 100% Correct
Answers.
Where does fertilization occur? correct answers ampulla of the uterine tube

What is a morula? What day is it formed? correct answers The zygote undergoes rapid mitotic
division to create a morula on day 4.

What is a blastocyst? What day is it formed? correct answers A blastocyst is formed on day 5
and consists of an embryoblast (inner cell mass) and trophoblast (outer cell mass).

When does implantation occur? correct answers 6 days after fertilization (about 1 week).

Where does the blastocyst normally implant? correct answers within the anterior or posterior
walls of the uterus.

What is an ectopic tubal pregnancy? correct answers The most common form of ectopic
pregnancy where implantation occurs within the ampulla of the uterine tube (due to delayed
transport).

What is ectopic abdominal pregnancy? correct answers Where implantations occurs in the
rectouterine pouch.

What does the embryoblast differentiate into? correct answers epiblast and hypoblast

What forms the bilaminar embryonic disc? correct answers epiblast and hypoblast.

What is the future site of the mouth? correct answers The prochordal plate.

What does the syncytiotrophoblast secrete? correct answers hCG

What does hCG do? correct answers stimulates the production of progesterone by the corpus
luteum.

What does a pregnancy test detect? correct answers HCG (human chorionic gonadotropin) in the
maternal urine at Day 10.

What are the critical events of the 3rd week in utero? correct answers Gastrulation and early
development of the nervous and cardiovascular system.

What is gastrulation? correct answers Invagination of blastocyst to form the three primary germ
layers from the epiblast: ectoderm, mesoderm, endoderm.

What is the most important period of fetal development? correct answers The embryonic period
of weeks 3-8.

,What is formed from ectoderm? correct answers epidermis and nervous system.

What is formed from mesoderm? correct answers Muscles, skeleton, circulatory system, gonads,
kidneys.

What is formed from endoderm? correct answers lining of digestive tract, lungs, liver, pancreas,
bladder, vagina, epithelium of GI & Resp.

What is a lumbar puncture and where does it take place? correct answers The subarachnoid space
L4 or L5 to extract CSF.

Where does the dural sac end? correct answers S2

Where does the spinal cord end in adults? correct answers L1 or L2

Where does the spinal cord end in children? correct answers L3

Where does a herniated disk usually occur? correct answers L4/L5, L5/S1, C5/C6 & C6/C7

What nerve root would a L4/L5 herniated disc compress? correct answers L5

What lower limb reflex would be decreased in an L2/L3 or L3/L4 herniated disc? correct
answers Patellar tendon reflex.

What lower limb reflex would be decreased in an L5/S1 herniated disc? correct answers Achilles
tendon reflex.

What is a herniated disc? correct answers The nucleus pulposus protrudes through the annulus
fibrosus.

What is kyphosis? correct answers An anterior concavity in the thoracic region.

What is lordosis? correct answers Swayback in the lumbar region, an anterior convexity,
common in pregnancy.

What is scoliosis? correct answers abnormal lateral curvature of the spine

What is osteroporosis? correct answers A decrease in bone density, decreasing its strength and
often results in bone fractures. Often due to age.

What is the most commonly fractured bone in the body? correct answers The clavicle.

What is the weakest part of the clavicle? correct answers Junction of medial two-thirds and
lateral one-third

, What is at risk in fractures of the middle third of the clavicle? correct answers Subclavian vessels
and trunks of the brachial plexus.

What happens in a fracture of the surgical neck of the humerus? correct answers Damage to the
axillary nerve and posterior humeral circumflex artery.

What happens in a fracture at the midshaft of the humerus? correct answers Damage to the radial
nerve, the deep brachial artery, and the origin of the brachialis muscle.

What happens in a fracture at the supracondylar of the humerus? correct answers Damage to the
median nerve and brachial artery.

What happens in a fracture of the medial epicondyle of the humerus? correct answers Damage to
the ulnar nerve.

What is a Smith's fracture? correct answers Fracture of the distal radius with anterior
displacement from a flexed wrist.

What is a Colles fracture? correct answers fracture of the distal radius with dorsal displacement
from an extended wrist. aka dinner fork deformity, the ulnar styloid process is broken off.

What happens during a scaphoid fracture? correct answers Occurs as a result of a fall onto the
palm. Pain is on the lateral side of the wrist, and the anatomical snuffbox.

What is at risk with a schaphoid fracture? correct answers Proximal fragment avascular necrosis
and radial artery and superficial branch of the radial nerve are at risk

She Looks Too Pretty Try To Catch Her correct answers scaphoid, lunate, triquetrum, pisiform,
trapezium, trapezoid, capitate, hamate

What is frequently fractured during fistfights? correct answers Necks of the metacarpals

What does a professional boxer usually fracture? correct answers 2nd and 3rd metacarpals

What does an unskilled fighter usually fracture? correct answers 4th and 5th metacarpals

What is a mallet or baseball finger? correct answers The DIP joint suddenly being forced into
hyperflexion, the extensor digitorum tendon is avulsed and therefor the DIP cannot extend.

What is the most frequently dislocated large joint? correct answers Glenohumeral joint

What is the most common shoulder dislocation? correct answers anterior dislocation

What are your rotator cuff muscles? correct answers SITS: Supraspinatus, Infraspinatus, Teres
minor, Subscapularis

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