Podcast
Questions and Answers
What is the primary function of the head of a sperm cell?
What is the primary function of the head of a sperm cell?
- Contains the nucleus with chromosomes (correct)
- Contains mitochondria for energy production
- Contains enzymes essential for fertilization
- Acts as the flagellum for movement
Which part of the sperm cell is primarily responsible for ATP production?
Which part of the sperm cell is primarily responsible for ATP production?
- Middle piece (correct)
- Neck
- Head
- Tail
What hormone is released by the anterior lobe of the pituitary gland to stimulate the testes?
What hormone is released by the anterior lobe of the pituitary gland to stimulate the testes?
- Corticosteroid
- Prolactin
- Gonadotropin (correct)
- Estrogen
Which of the following is NOT a component of a sperm cell?
Which of the following is NOT a component of a sperm cell?
What type of motion does the tail of a sperm cell exhibit?
What type of motion does the tail of a sperm cell exhibit?
What is the primary role of the neck of the sperm cell?
What is the primary role of the neck of the sperm cell?
What structure in sperm cells is responsible for moving the cell from one place to another?
What structure in sperm cells is responsible for moving the cell from one place to another?
Which hormone is secreted by the anterior lobe of the pituitary gland and stimulates the release of testosterone from the testes?
Which hormone is secreted by the anterior lobe of the pituitary gland and stimulates the release of testosterone from the testes?
What is the primary component surrounding the middle piece of the sperm cell that provides it with energy?
What is the primary component surrounding the middle piece of the sperm cell that provides it with energy?
Which of the following best describes the configuration of something in the sperm's middle piece?
Which of the following best describes the configuration of something in the sperm's middle piece?
Flashcards
Sperm Head
Sperm Head
The front of the sperm cell, shaped like a flattened ellipse. Contains the nucleus with the sperm's DNA.
Sperm Neck
Sperm Neck
A short region connecting the head to the middle piece. Contains enzymes crucial for fertilization.
Sperm Middle Piece
Sperm Middle Piece
The middle part of the sperm cell, containing mitochondria that produce ATP. Located around microtubules, providing energy to propel the tail.
Sperm Tail
Sperm Tail
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Gonadotropin Hormones (FSH & LH)
Gonadotropin Hormones (FSH & LH)
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What does the sperm head contain?
What does the sperm head contain?
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What is the role of the sperm's neck?
What is the role of the sperm's neck?
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What is the function of the sperm's middle piece?
What is the function of the sperm's middle piece?
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What is the purpose of the sperm's tail?
What is the purpose of the sperm's tail?
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What do FSH and LH do?
What do FSH and LH do?
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Study Notes
Anatomy of Sperm
- Sperm has four main parts: head, neck, middle piece, and tail.
- The head is a flattened ellipse containing the nucleus with chromosomes (DNA).
- The neck contains enzymes essential for fertilization.
- The middle piece is attached to the head by a short neck and contains mitochondria arranged in a spiral around microtubules. These mitochondria provide ATP for tail movement.
- The tail is the only flagellum in the human body.
- The tail is a whip-like organelle that moves the sperm through a complex, corkscrew motion, thereby moving the cell.
Hypothalamus – Pituitary Regulation
- Gonadotropin hormones (FSH and LH) are released from the anterior lobe of the pituitary.
- These hormones stimulate the testes to release other hormones like inhibin and testosterone.
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