Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

29. Heredity

Genetic Disorders

Anatomy & Physiology

29. Heredity

Genetic Disorders

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Multiple Choice

The phenotypes associated with Trisomy 21 include which of the following?

Tall stature and long limbs

Increased muscle tone and joint hypermobility

Intellectual disability and characteristic facial features

Progressive muscle weakness and respiratory issues

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Verified step by step guidance

Understand the condition: Trisomy 21, also known as Down syndrome, is a genetic disorder caused by the presence of an extra chromosome 21.

Identify common phenotypes: Individuals with Trisomy 21 often exhibit intellectual disability and characteristic facial features, such as a flat facial profile, upward slanting eyes, and a small nose.

Recognize other associated features: While tall stature and long limbs, increased muscle tone, and joint hypermobility are not typical of Trisomy 21, individuals may have short stature and hypotonia (decreased muscle tone).

Differentiate from other conditions: Progressive muscle weakness and respiratory issues are more commonly associated with other genetic disorders, such as muscular dystrophy, rather than Trisomy 21.

Conclude with the correct phenotypes: Intellectual disability and characteristic facial features are the phenotypes most commonly associated with Trisomy 21.