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Assessment of Students’ Knowledge of Anatomical Structures Involved in Smell

Abstract

The study assesses students’ knowledge of the anatomical structures involved in smell, with emphasis on the structures that contribute to the detection, transmission, and initial processing of olfactory sensations. The sense of smell depends on the coordinated involvement of the nasal cavity, olfactory epithelium, olfactory receptor cells, olfactory nerve fibres, olfactory bulb, olfactory tract, and related regions of the brain. Knowledge of these structures is important for understanding the anatomical basis of olfaction and its relevance to clinical conditions affecting the nasal and nervous systems. The study will assess students’ knowledge of the location, structure, and functions of the major anatomical components involved in olfaction. Specific objectives will include determining students’ ability to identify the olfactory epithelium and receptor cells, describing the course of the olfactory nerve and tract, identifying the olfactory bulb and related brain structures, and assessing their understanding of the relationship between the nasal cavity and central olfactory pathways. A cross-sectional descriptive research design will be adopted for the study. Undergraduate students will be selected using an appropriate sampling technique, and data will be collected through a structured questionnaire and, where applicable, image-based or practical identification of relevant anatomical structures. The assessment will cover students’ knowledge of the nasal and intracranial structures involved in smell, their anatomical relationships, and the pathways through which olfactory information is transmitted. The collected data will be analyzed using descriptive statistics such as frequency, percentage, mean, and standard deviation, with appropriate inferential tests applied where necessary. The study is expected to reveal varying levels of knowledge among the students regarding the anatomical structures involved in smell. Students may demonstrate better knowledge of easily recognizable structures such as the nasal cavity and olfactory bulb, while more detailed structures such as the olfactory epithelium, receptor cells, olfactory nerve fibres, and central olfactory pathways may present greater identification or understanding difficulties. Differences in knowledge may also be observed according to students’ level of study and exposure to practical anatomy learning. The findings will be useful to anatomists, anatomy educators, medical and health sciences educators, neurologists, otorhinolaryngologists, and other healthcare professionals involved in the assessment of olfactory function. The study may provide information on areas of olfactory anatomy that require greater emphasis during practical and theoretical teaching and may support the development of learning activities that improve students’ understanding of the anatomical basis of smell. The study will conclude by documenting students’ level of knowledge of the anatomical structures involved in smell and identifying areas of strength and difficulty in their understanding of olfactory anatomy. It is recommended that practical demonstrations, anatomical models, labelled diagrams, radiological images, and other appropriate visual learning resources be incorporated into anatomy teaching to improve students’ identification and understanding of olfactory structures. Further studies involving larger and more diverse student populations should also be conducted to provide broader information on knowledge of olfactory anatomy.

Keywords: Olfactory anatomy, smell, olfaction, anatomical structures, anatomical knowledge, undergraduate students, nasal cavity, olfactory epithelium, olfactory receptor cells, olfactory nerve, olfactory bulb, olfactory tract, central olfactory pathways, anatomy education, clinical anatomy.