90+ Body Parts That Start With A

Embarking on the study of human anatomy can be both intriguing and daunting. A fundamental step in this journey is learning about the various body parts and their functions, organized alphabetically for ease of understanding. This guide is specifically tailored for beginners, focusing on body parts that start with the letter ‘A.’

It covers a wide range of anatomical components, from major organs to small structures, each playing a unique role in the human body’s complex system.

Body Parts That Start With A

  • Aorta
  • Artery
  • Ankle
  • Auricle
  • Appendix
  • Amygdala
  • Atrium
  • Alveoli
  • Adenoids
  • Abdomen
  • Acromion
  • Axilla
  • Anus
  • Anterior Cruciate Ligament (ACL)
  • Adam’s Apple
  • Antitragus
  • Antihelix
  • Areola
  • Auditory Canal
  • Aqueous Humor
  • Antecubital Fossa
  • Anconeus Muscle
  • Aponeurosis
  • Angular Gyrus
  • Annulus Fibrosus
  • Anterior Talofibular Ligament
  • Anterior Tibial Artery
  • Anterior Tibial Vein
  • Anconeal Process
  • Anular Ligament
  • Anterior Uvea
  • Acetabulum
  • Anterior Chamber of the Eye
  • Anterior Cervical Lymph Nodes
  • Abductor Pollicis Longus
  • Abductor Pollicis Brevis
  • Abductor Digiti Minimi
  • Abductor Hallucis
  • Arcuate Artery
  • Arcuate Vein
  • Azygos Vein
  • Anterior Spinal Artery
  • Anterior Communicating Artery
  • Anterior Choroidal Artery
  • Anterior Ethmoidal Artery
  • Anterior Inferior Cerebellar Artery
  • Adductor Magnus
  • Adductor Longus
  • Adductor Hiatus
  • Aplasia Cutis Congenita
  • Anconeus Epitrochlearis
  • Anterior Capsule of the Lens
  • Anterior Cingulate Cortex
  • Ampulla of Vater
  • Anterior Horn of the Lateral Ventricles
  • Anterior Interventricular Sulcus
  • Anterior Scalene Muscle
  • Aortic Valve
  • Aortic Arch
  • Ankle Joint
  • Anterior Cerebral Artery
  • Anserine Bursa
  • Arachnoid Mater
  • Articular Cartilage
  • Arytenoid Cartilage
  • Anatomical Snuffbox
  • Anterior Superior Iliac Spine
  • Alar Cartilage
  • Anal Canal
  • Anophthalmos
  • Ascending Aorta
  • Ascending Colon
  • Atrial Septum
  • Atlanto-occipital Joint
  • Atlantoaxial Joint
  • Achromatic Cells
  • Adductor Brevis
  • Adductor Pollicis
  • Adductor Hallucis

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(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z)

Body Parts Beginning With A (And Their Properties)

  • Abdomen: Houses major digestive organs.
  • Adam’s apple: Visible laryngeal prominence.
  • Adenoids: Lymphatic tissue in nasopharynx.
  • Adrenal glands: Produces vital hormones.
  • Alveoli: Facilitates respiratory gas exchange.
  • Ankle: Connects foot and leg.
  • Antecubital fossa: Area opposite the elbow.
  • Anterior chamber: Fluid-filled eye space.
  • Aorta: Body’s main artery.
  • Appendix: Vestigial digestive tract part.
  • Arm: Upper limb from shoulder.
  • Artery: Carries oxygenated blood.
  • Atrium: Heart’s upper chamber.
  • Auditory canal: Conducts sound waves.
  • Auricle: External ear structure.
  • Axilla: The underarm area.
  • Axon: Conducts neuronal impulses.
  • Aqueous humor: Eye’s nourishing fluid.
  • Arachnoid mater: Brain’s protective layer.
  • Areola: Surrounds the nipple.
  • Aphthae: Mouth’s small ulcers.
  • Aponeurosis: Connective tissue attaching muscles.
  • Arachnoid villi: Cerebrospinal fluid drainage structures.
  • Arcuate artery: Kidney’s curved artery.
  • Astrocytes: Star-shaped brain cells.
  • Atrioventricular node: Heart’s electrical system component.
  • Auditory ossicles: Middle ear bones.
  • Axillary artery: Supplies blood to armpit.
  • Axillary vein: Drains blood from armpit.
  • Azygos vein: Drains thoracic wall.
  • Alar cartilage: Shapes the nostrils.
  • Alveolar bone: Supports the teeth.
  • Anconeus muscle: Assists elbow extension.
  • Anal canal: Ends the digestive tract.
  • Amino acids: Protein’s building blocks.
  • Ampulla: Ducts’ dilated end.
  • Anal sphincter: Controls fecal excretion.
  • Antrum: Hollow cavity in organs.
  • Achilles tendon: Heel connecting tendon.
  • Acromion: Shoulder blade’s extension.

Body Parts Beginning With A

Other Body Parts Starting With The Letter A

  • Anterior cruciate ligament: Stabilizes the knee.
  • Arrector pili muscles: Controls hair standing.
  • Articular cartilage: Eases joint movement.
  • Ascending aorta: Carries blood upwards.
  • Ascending colon: Absorbs fluids and salts.
  • Ascites: Fluid accumulation in abdomen.
  • Aspergillus: A type of fungus.
  • Astigmatism: Impairs optical focus.
  • Ataxia: Coordination loss in movements.
  • Atelectasis: Partial lung collapse.
  • Aurora Borealis: Atmospheric light phenomenon.
  • Auscultation: Listening to internal sounds.
  • Autonomic nervous system: Controls involuntary actions.
  • Avascular necrosis: Interrupted blood supply to bone.
  • Axillary lymph nodes: Filters lymph in armpit.
  • Axillary nerve: Innervates shoulder muscles.
  • Axon hillock: Initiates nerve impulses.
  • Axon terminal: Releases neurotransmitters.
  • Azotemia: Elevated blood nitrogen levels.
  • Angular gyrus: Processes language and cognition.
  • Anterior scalene muscle: Facilitates neck movement.

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