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30 Οκτ 2023 · This article will review the embryology of the bone marrow as well as its histology. Additionally, the constituent cell lineages and their function will be discussed, together with clinically relevant processes and pathologies.
- Upper respiratory tract: Histology and pathology - Kenhub
The respiratory tract is the pathway through which much...
- Upper respiratory tract: Histology and pathology - Kenhub
24 Ιαν 2024 · Histology of the respiratory system. Author: Danijel Tosovic, PhD • Reviewer: Dimitrios Mytilinaios, MD, PhD. Last reviewed: January 24, 2024. Reading time: 2 minutes. Recommended video: Lung histology [19:53] Histological appearance of normal lung tissue and its components. Respiratory system (Systema respiratorum)
Histopathology is a subjective assessment and is useful for evaluating bone marrow architecture, assessment of cellularity, estimation of M:E ratio (limited sensitivity), assessment of cell lineages, estimation of iron stores and other features (e.g., neoplasia, inflammation, pigment, infectious agents).
The bone marrow consists of (1) hematopoietic stem cells, pluripotent cells capable of self-renewal; (2) progenitor cells that evolve into more differentiated cells with each cell division; (3) precursor cells that can be identified by light microscopy (not shown, see Fig. 13-3); and (4) mature hematopoietic cells awaiting release into the ...
The quality of the marrow sections is governed by numerous variables related to specimen collection and processing and must be considered. In addition to discussing normal structure, function, and histology of bone marrow, methods for preparation and evaluation of bone marrow are presented.
30 Οκτ 2023 · The respiratory tract is the pathway through which much needed oxygen enters the body. It begins at the nostrils of the nose, continuing into the nasal cavity. From here, it passes through the pharynx, larynx, trachea, bronchi, bronchioles and ends in the alveoli.
23 Δεκ 2011 · Key Points. Bone marrow cellular niches are functional compartments that regulate haematopoietic stem cell (HSC) and immune cell behaviour through direct cell contact, growth factors and...
