HUN 3403 Lecture Notes - Lecture 5: Spermatozoon, Menarche, Scrotum

• School: University of Florida
• Department: Food Science and Human Nutrition
• Course: HUN 3403
• Professor: Henken Bobbi

Document Summary

Adolescence study guide (exam 2: know the factors considered in calculating eer. Factors include age, weight in kg, height in meters, physical activity, and sex: know rda values for protein and amdr values for carbohydrates, added sugars, protein, and fat. Age 9-18 10-30% of total energy from protein. Age 9-18= 25-35% of total energy from fat. Age 9-18= 45-65% of total energy from carbohydrate/ <25% of total energy from added sugar: discuss the role of hormones on growth and maturation of adolescent males and females. Fsh and lh (pit hormones in males)- stimulate testes to produce testosterone and allows development of spermatozoa. Testosterone: stimulates enlargement of the penis, scrotum, testes: spermatozoa develop. Promotes closure of epiphyseal plates (stops growth because bones grow from this plate) Promotes development of secondary sex characteristics such as pubic, chest , facial hair, voice change, increased musculature, baldness, increased bone growth and calcium retention, increased bmr- due to growth, muscle metabolically active, increased rbc.