hyoid bone

Examples of hyoid bone in the following topics:

• The Hyoid Bone

  • The hyoid, a horseshoe-shaped bone situated in the anterior of the neck, between chin and thyroid, aids tongue movement and swallowing.
  • The hyoid bone is a horseshoe shaped bone found in the neck.
  • Located anteriorly between the mandible and the thyroid cartilage, the hyoid bone protects the esophagus and also facilitates the wide range of muscle activity required for speaking and swallowing.
  • The hyoid bone consists of a central body and two pairs of cornua, or horns, termed greater and lesser cornua.
  • The hyoid ossifies towards the end of fetal development, commencing in the greater cornua before completing in the body shortly after birth.

• Neck Muscles

  • The four suprahyoid muscles found above the hyoid bone act in concert to elevate the hyoid bone, assisting with swallowing by widening the esophagus.
  • It originates from the mandible and attaches to the hyoid bone.
  • The four infrahyoid muscles found below the hyoid bone act in concert to depress the hyoid bone during swallowing and speaking, compressing the esophagus.
  • Sternohyoid – A superficial muscle which originates from the sternum and attaches onto the hyoid bone.
  • Suprahyoid and infrahyoid muscle groups are named based on their location relative to the hyoid bone.

• Overview of the Axial Skeleton

  • The axial skeleton consists of the 80 bones along the central axis of the human body.
  • The axial skeleton consists of the 80 bones along the central axis of the human body.
  • It is composed of: the human skull, the ossicles of the middle ear, the hyoid bone of the throat, the rib cage (including the sternum), and the vertebral column.
  • The ossicles (also called auditory ossicles) are the three smallest bones in the human body.
  • The hyoid bone is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage.

• Human Axial Skeleton

  • The axial skeleton forms the central axis of the human body and includes the bones of the skull, the ossicles of the middle ear, the hyoid bone of the throat, the vertebral column, and the thoracic cage (ribcage) .
  • The eight cranial bones include the frontal bone, two parietal bones, two temporal bones, the occipital bone, the sphenoid bone, and the ethmoid bone.
  • The 14 facial bones are the nasal bones, maxillary bones, zygomatic bones, palatine, vomer, lacrimal bones, inferior nasal conchae, and mandible.
  • The hyoid bone lies below the mandible in the front of the neck.
  • The axial skeleton consists of the bones of the skull, ossicles of the middle ear, hyoid bone, vertebral column, and rib cage.

• Facial Bones

  • The hyoid bone, ethmoid bone, and sphenoid bones are sometimes included in the viscerocranium.
  • The lacrimal bones are the two smallest bones located in the face.
  • The maxilla bones fuse in the midline and form the upper jaw.
  • There are fourteen facial bones.
  • Some, like the lacrimal and nasal bones, are paired.

• The Axial Skeleton

  • Head (Includes the bones of the skull (cranium), face, auditory ossicles, and hyoid bone)
  • The human cranium consists of the flat bones of the cranium and includes the facial bones.
  • The cranium is formed from eight bones connected by sutures.
  • Important facial bones include the lower jaw or mandible, the upper jaw or maxilla, the zygomatic or cheek bone, and the nasal bone.
  • The hyoid bone is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage.

• Divisions of the Skeletal System: Axial and Appendicular

  • Humans are born with between 300 and 350 bones.
  • While some consider certain structures to be a single bone with multiple parts, others may see it as a single part with multiple bones.
  • There are five general classifications of bones.
  • These are long bones, short bones, flat bones, irregular bones, and sesamoid bones.
  • It is composed of the human skull, the ossicles of the middle ear, the hyoid bone of the throat, the rib cage, and the vertebral column .

• Homo sapiens

  • Other significant morphological changes leading to modern humans include the evolution of a power and precision grip, a reduced masticatory (chewing) system, a reduction of the canine tooth, and the descent of the larynx and hyoid bone, which make speech possible.

• Pharynx

  • The lateral walls of the nasopharynx are made of the pharyngeal ostia (bone) of the auditory tube, and supported by the torus tubarus, a mound of cartilage tissue from the auditory tube.
  • Behind the bone of the auditory tube is a deep recess, the pharyngeal recess.
  • The formal superior boundary that separates the laryngopharynx from the oropharynx is at the level of the hyoid bone.

• Clavicle

  • The clavicle or collar bone is a long, curved bone on the upper portion of the shoulder that connects with the scapula and the sternum.
  • The clavicle, or collarbone, is a slender s-shaped bone that extends between the sternum and the scapula and is located directly above the first rib.
  • Muscle attachment sites (pectoralis major, subclavius muscle, deltoid, and sterno-hyoid) are highlighted.