Referring to the Figure of Sperm Penetration and Fusion,match the Lettered

question 26

Multiple Choice

Referring to the figure of sperm penetration and fusion,match the lettered description with the correct numbered step in the figure.

A. Some of the zona pellucida is degraded by acrosomal enzymes.
B. Enzymes are released by cortical granules that harden the zona pellucida.
C. Sperm and egg fuse at the plasma membrane.
D. Sperm penetrates the corona radiata.
E. The sperm nucleus dissociates and enters the cytoplasm.
F. Additional sperm can no longer penetrate.

-Step I

• A)Some of the zona pellucida is degraded by acrosomal enzymes.
• B)Enzymes are released by cortical granules that harden the zona pellucida.
• C)Sperm and egg fuse at the plasma membrane.
• D)Sperm penetrates the corona radiata.
• E)The sperm nucleus dissociates and enters the cytoplasm.
• F)Additional sperm can no longer penetrate.

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Definitions:

Autonomic Ganglion

A collection of nerve cell bodies in the autonomic nervous system that act as relay points for transmitting neurological signals to organs.

Smooth Muscle

A type of muscle found in the walls of hollow organs like the intestines and blood vessels, characterized by its involuntary control and lack of striations.

Pelvic Splanchnic Nerves

Nerves that arise from the sacral spinal nerves, contributing to the autonomic innervation of the pelvic organs.

Parasympathetic Division

Part of the autonomic nervous system responsible for conserving energy and restoring the body to a state of calm after periods of stress or danger.