10 Questions
Which of the following best describes the branchial apparatus?
A structure in humans similar to gills in primitive chordates.
At what stage does a human embryo's head and neck region resemble that of a fish embryo?
At the 4th week
What is the origin of the term 'branchial'?
Greek word for 'gills'.
In humans, what is the contribution of the branchial apparatus?
Formation of the head and neck region.
Which of the following does NOT constitute part of the pharyngeal apparatus?
Pharyngeal grooves
The branchial apparatus in primitive chordates is associated with respiration and feeding.
True
The term 'branchial' is derived from the Latin word meaning gills.
False
In humans, the branchial apparatus forms part of the digestive system.
False
Pharyngeal pouches are a component of the pharyngeal apparatus in humans.
True
The branchial apparatus in a human embryo appears different from that in a fish embryo at four weeks.
False
Study Notes
Pharyngeal or Branchial Arches
- The head and neck region of a 4-week human embryo resembles that of a fish embryo at the same stage, earning it the term "branchial apparatus".
- The term "branchial" comes from the Greek word for "gills", which are associated with feeding and respiration in primitive chordates.
- In humans, the branchial apparatus contributes to the development of the head and neck region.
Pharyngeal Apparatus
- Consists of two main components:
- Pharyngeal arches
- Pharyngeal pouches
Pharyngeal or Branchial Arches
- The head and neck region of a four-week human embryo resembles that of a fish embryo at the same stage, earning it the term "branchial apparatus".
- The term "branchial" comes from the Greek word for "gills", which are associated with feeding and respiration in primitive chordates.
- In humans, the branchial apparatus contributes to the development of the head and neck region.
Pharyngeal Apparatus
- Consists of two main components:
- Pharyngeal arches
- Pharyngeal pouches
The branchial apparatus in embryos of humans and fish, its formation and contribution to the head and neck region in humans.
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