Within the human body, a continuous canal starts at the ______ and concludes at the anus, through which food traverses.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. buccal cavity.
In the human body, a continuous canal, known as the gastrointestinal or digestive tract, commences at the mouth and concludes at the anus.
This canal is pivotal for the ingestion, digestion, absorption, and elimination of food.
The process initiates with mastication in the mouth, breaking down food into smaller pieces and mixing it with saliva.
Subsequently, it traverses through the esophagus, stomach, small intestine, and large intestine, facilitating various digestive and absorptive processes.
Ultimately, waste products are expelled through the anus in the form of feces.
The entirety of the digestive tract plays a crucial role in nutrient absorption and the overall functioning of the human body.