Recurrent laryngeal nerve (branch of CN X, arch 6) loops under the right subclavian artery on right, ligamentum arteriosum on left. If a patient has a dysphagia lusoria (aberrant right subclavian artery), the nerve takes a direct course to the larynx – this is a known surgical variant.
Where does fertilization usually occur? (Answer: The ampulla of the uterine tube). Sample Question:
4th arch (superior laryngeal nerve – internal branch). Wait, let’s check: Actually, a floppy epiglottis (laryngomalacia) classically involves the 3rd and 4th arches. More precisely, the superior laryngeal nerve (branch of CN X from 4th arch) innervates the cricothyroid and sensory above vocal cords. However, the classic exam answer for laryngomalacia is 4th pharyngeal arch .
Memorize the following short list completely. Teratogens are disproportionately represented in question banks.
During a routine ultrasound at 8 weeks, a patient is found to have a dichorionic, diamniotic twin gestation. The twins are of opposite sexes. What is the most likely timing of the zygote splitting?
For any gut or diaphragm question, think rotation and herniation.
Do not memorize every day. Focus on weeks : Weeks 3-8 (Organogenesis – most sensitive to teratogens). Week 3 (CNS & heart). Week 4 (Upper limb buds). Week 6 (Lower limbs, palate fusion begins).
These questions bridge the gap between "how it grows" and "how it fails." Embryology Questions Medical School
Questions often focus on the differences between spermatogenesis and oogenesis, particularly where meiosis is arrested.
Recurrent laryngeal nerve (branch of CN X, arch 6) loops under the right subclavian artery on right, ligamentum arteriosum on left. If a patient has a dysphagia lusoria (aberrant right subclavian artery), the nerve takes a direct course to the larynx – this is a known surgical variant.
Where does fertilization usually occur? (Answer: The ampulla of the uterine tube). Sample Question:
4th arch (superior laryngeal nerve – internal branch). Wait, let’s check: Actually, a floppy epiglottis (laryngomalacia) classically involves the 3rd and 4th arches. More precisely, the superior laryngeal nerve (branch of CN X from 4th arch) innervates the cricothyroid and sensory above vocal cords. However, the classic exam answer for laryngomalacia is 4th pharyngeal arch .
Memorize the following short list completely. Teratogens are disproportionately represented in question banks.
During a routine ultrasound at 8 weeks, a patient is found to have a dichorionic, diamniotic twin gestation. The twins are of opposite sexes. What is the most likely timing of the zygote splitting?
For any gut or diaphragm question, think rotation and herniation.
Do not memorize every day. Focus on weeks : Weeks 3-8 (Organogenesis – most sensitive to teratogens). Week 3 (CNS & heart). Week 4 (Upper limb buds). Week 6 (Lower limbs, palate fusion begins).
These questions bridge the gap between "how it grows" and "how it fails." Embryology Questions Medical School
Questions often focus on the differences between spermatogenesis and oogenesis, particularly where meiosis is arrested.
