Compare the hearts of a trained athlete and a non-athlete

What will be an ideal response?


The athlete's heart will be more massive, and will have a higher resting stroke volume and a lower resting heart rate. During maximum activity, stroke volume will be much greater for the athlete, and cardiac output of the athlete may approach 30 liters/minute compared to 20 liters/minute of the non-athlete. Maximum heart rates will be about the same despite the much larger cardiac output, due to the larger stroke volume.

Anatomy & Physiology

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The inner cell mass

A. becomes part of the placental membrane. B. gives rise to the embryo. C. becomes part of the chorion. D. forms the amnion.

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The sacrum consists of how many fused bones?

A) 7 B) 5 C) 4 D) 3 E) 6

Anatomy & Physiology

Astrocytes produce myelin for the cells of the central nervous system.

Indicate whether the statement is true or false.

Anatomy & Physiology

What condition results from elevated pressure within the eyeball due to inadequate reabsorption of aqueous humor?

A. Macular degeneration B. Astigmatism C. Myopia D. Glaucoma E. Cataracts

Anatomy & Physiology